nano diamond applications

Detonation method prepared nano diamond step is as follows: negative oxygen balance dynamite explosion in the protection of medium environment,  in the process of explosion redundant carbon atoms gathered, crystallization and a series of physical and chemical process, formed the nanoscale carbon particles group, including diamond, graphite and amorphous carbon.Through selective oxidation and chemical processing, remove diamond phase and get the nanoscale nano diamond powder.

nano diamond powder, particle size <10nm, purity 99%, spherical grey powder.

nano diamond is widely applied in polishing,lubricant,metal plating and bio-pharma medicine...


1. Precious polishing

 nano diamond polishing system with nanodiamond has the following advantages:


(1) superfine sized nano diamond can guarantee the minimum value of the surface roughness and polishing system colloid stability;


(2) the chemical stability of diamond nanoparticles, can be used for polishing system active additive and reduction of polishing system;


(3) to reduce the weight of polishing surface material, reduce the wastage of the material;


(4) the ion exchange and adsorption activity of nano diamond can reduce the activity of the ions and molecules on the surface of the product;


(5) the aggregate structure of nano diamond aggregate is advantageous to the suspension polishing system regulation, and non-toxic;


(6) polishing system contain nano diamond can improve the quality and the competitive ability of polishing products.


2. Lubrication

nanodiamond for motor oil to extend the operational range of its tanks, ships, and aircraft.This is really a remarkable type of product with nanodiamond engine oil additives and other nanodiamond lubricants performing great things under hoods around the world.

Diamond have high hardness, the friction surface can freely grind to pointed convex, quickly to remove uneven peak of the friction pair surface, belongs to the very precision grinding and polishing process, which is unable to be done for ordinary mechanical processing.The effect make contact area between the friction pair increase rapidly, accelerate the running-in process, improve the precision of break-in. And nano diamond spherical particles are embedded in the contact between friction pair slightly concave.Have excellent bearing capacity and show good lubricity, sliding friction into rolling friction, the friction resistance smaller, avoid dry grinding.

3. Metal plating

Nano diamond metal composite coating has the following connectivity: High wear resistance and micro hardness;High resistance to corrosion and small porosity;Very low friction coefficient;High cohesion and adhesion;The spread of the electrolyte with high ability.

the chrome plating of military components with nanodiamond enhanced plating solution.using HW NANO nanodiamond in its chrome plating baths, increasing the hardness of chrome plating from 68 Rc to 98 Rc. 


4. Bio pharma medicine

Nanomedicine is an emerging area of biomedical research that has potential for advancing medical science. This area of research entails the creation and use of materials at the level of molecules and atoms in order to investigate and treat diseases and disorders; generally less than 100 nm in size. The unique properties of nanomaterials, including nanodiamond and quantum dots make them potential candidates for rational delivery and targeting of pharmaceutical, therapeutic, and agents for disease diagnosis, treatment, and prevention of a wide range of disease processes. Many of these molecules can be easily manipulated and functionalized by the addition of drugs or solubilizing groups within their structure or to their external walls. This allows for specific homing to precise targets (cells, receptors, etc) related to clinical conditions to achieve the required response while minimizing side effects given their sub-cellular size.


you can click our website www.hwnanomaterial.com for detailed production information. our nano diamond powder is availabe in a wide range of quantities and specifications to meet your particular industrial or scientific application. 

If you have any questions, please feel free to contact me at hwsales8@xuzhounano.com. thank you.

Nano Graphene

    Graphene is made of a single layer of carbon atoms that are bonded together in a repeating pattern of hexagons. Graphene is one million times thinner than paper, and it is actually considered two dimensional.

1.  Single Layer nano Graphene Powder:

thickness:0.6-1.2nm,Length:0.8-2um,>99%

2.  Multi Layer nano Graphene Powder:

thickness:1.5-3.0nm,Length:5-10um,>99%

    Graphene-based nanomaterials have many promising applications in energy-related areas. For instance, graphene improves both energy capacity and charge rate in rechargeable batteries; activated graphene makes superior supercapacitors for energy storage; graphene electrodes may lead to a promising approach for making solar cells that are inexpensive, lightweight and flexible; crumpled graphene boosts performance of high-energy lithium storage materials; and multifunctional graphene mats are promising substrates for catalytic systems.

    The nano graphene has high conductivity, high tenacity, high strength, large specific surface characteristics, and it can be widly used in the semiconductor, pv, lithium battery, aerospace, military industry, LED, touch screen area.

    The applications of graphene in lithium ion battery solve the problem that traditional lithium battery energy density and power density cannot be acquired simultaneously.composite coating add graphene has good antiseptic effect;Graphene mobile phones have realized the mass production, it also marks that the graphene industry made a new breakthrough in intelligent terminal applications, graphene industry is expected to news mount this year.

    Computer chips rely on billions of transistors to control the flow of electricity in their circuits. Research has mostly focused on making chips more powerful by packing in more transistors, and graphene could certainly give rise to the thinnest transistors yet.

    Nano Graphene could also have applications for camera sensors, DNA sequencing, gas sensing, material strengthening, water desalination and beyond.

If you'd learn more about nano graphene, pla feel free to contact me at hwsales8@xuzhounano.com. thank you.

silver nanoparticles: Cubic Beta Grade Silicon Carbide Nanoparticles App...

silver nanoparticles: Cubic Beta Grade Silicon Carbide Nanoparticles App...: HW NANO silicon carbide nanoparticles has the good chemistry stability, low heated expansion, high efficiency of heat conductivity, electric...

Cubic Beta Grade Silicon Carbide Nanoparticles Application

HW NANO silicon carbide nanoparticles has the good chemistry stability, low heated expansion, high efficiency of heat conductivity, electrical resistance comparing with metal being in the opposite direction , very hard and the level over 9.5 of Moss's.


silicon carbide nanoparticles resists heat , grinding & crushing , especially in resisting hot shock wave, corrosion and radiation .


Basic property: 
Decomposition Temperature (K): 2973
Heating Power (KJ/mol): 30.343
Linear Expansion Coefficient (373K): 6.58*10-6
Linear Expansion Coefficient (1173K): 2.98*10-6


Thermal Conductance:
Compression Coefficient: 0.21*10-6
Density (288K) (g/cm3): 3.216

Hardness (Mohs): 9.5


The shape of beta silicon carbide is crystallized as diamond . Harder than alpha silicon carbide reaching the level 9.5 of Moss's , good measure of tensile strength , best efficiency for electric current .


Silicon carbide nanoparticles has many advantages in strengthening, measure of tensile strength of substance, also has the special function on electric, wave, light.

Silicon carbide nanoparticles

At the present , the mainly application field for silicon carbide nanoparticles in below:


1. Brake pads fields.


Silicon carbide SiC composite material can meet 1650-1700 ℃ high temperature,  adding silicon carbide in the brake pads production progress can more effectively improve the braking stability,  solve the shortage of the poor adaptability caused by low static friction coefficient,  improve the sensitivity of the brakes.

2. Abrasives pastes.

Alpha SiC for rough cast, and for finishing polish,beta SiC is better and it can improve the smooth finish. Beta SiC can be used in grinding paste, grinding fluid, metal polishing, mechanical equipment area. High precision abrasive cloth belt and super wear resistant coating market is very good choice.

In order to improve the service life of diesel engine fuel injection nozzle matching parts, customer factory changed needle cut of fuel injection nozzle matching parts from the original GCr15 steel to 18Cr:Ni‘WA steel, and the Needle cut from GCr15 steel to WisCr4V. after carburizing and quenching,18crzni4wa material  mechanical processing manufaturability is less than GCr15 steel. in the cutting needle body holes and seat surface has good concentricity by Wx-042 processing, but mesopore finish only reach v10, also need to grinding, improve the data to V12.the test result showed that for chrome oxide paste and alumina grinding paste,the grinding cutting ability and pocessing finish is poor, it seriously affect the productivity and  product quality improvement.



3. Sharpening stone, Oilstone, Abrasive stone



Silicon carbide micron powders is widely used in the manufacture of advanced oil stone, super fine grinding oilstone, strong grinding oil stone, which are mainly used in machinery manufacturing, mold manufacturing, instruments and meters fields. Efficiency is twice as common oil stone's.


4. Cetamic material Sintering powder

Beta SiC can crystallization at 1800 ℃,it plays a good role for ceramics sintered density.
it is excellent Ceramic strengthening agent


5. The conductive material

Conductive, thermal conductivity of beta sic is better than alpha SiC for several times, it can be used in heater, heat exchanger, electric heaters, thermal shock resistance, not afraid of very hot and cold, and other materials will be easy to explode.


6. Special coating
foil coating in military enterprise. after electroless or composite plating cubic beta sic on wear-resistant products, wear-resisting life will be better. 


7. Carbon powder additives

After adding beta SiC, liquidity and adhesion of copier Carbon powder is increased, 5% of the additive is better.


8. Thermal conductivity, wear additives

Adding cubic silicon carbide to polymer composite materials and metal materials,which can greatly improve its thermal conductivity and lower coefficient of expansion, increase the wear resistance, etc., and the specific gravity of silicon carbide is small, no impact on the material structure weight.

We are professional manufacturer and supplier for cubic beta sic silicon carbide nanoparticles in small quantity for researchers and in bulk order for industry groups. Business involved all kinds of aspects: manufacturing, research, development, processing, supplying and after-sales service.

For further info about cubic silicon carbide oils tone, please feel free to contact us at hwsales8@xuzhounano.com.

Powder Metallurgy - Copper powders and copper alloy powders

    We are a professional manufacturer and supplier of copper powders in a range of particle sizes and shapes which meet specific technical requirements such as Apparent Density and Purity.

    Copper is a reddish coloured metal which is malleable and ductile. It has excellent thermal and electrical conductivities and good corrosion resistance, and fine copper powders are used in the manufacture of electrical contacts, sintered permanent magnets, carbon brushes, and friction materials such as clutches and brakes. They are also used for bonding diamonds and as the matrix metal for abrasive wheels. They are used in brazing pastes, in rubber compounds, as a filler in plastics, in special cements, in pyrotechnics and in miscellaneous chemical applications. 

copper nanopowder:size:20nm,40nm,70nm,100nm,200nm,500nm.99.9%

microsized copper powder,size:1um,5um,10um,15um,20um,etc
Morphology:Spherical,flake,dendritic

spherical copper powder

In addition to the pure copper powder, copper alloy nanopowders are also available, such as copper zinc alloy powder(CuZn),copper nickel alloy powder(CuNi),etc.

Storage conditions of copper powders:

these copper powders should be kept sealed in a dry, cool environment, should not be exposed to air, prevent oxidated with damp.

Our copper powder is available in a wide range of quantities and specifications to meet your particular industrial or scientific application. For further technical information or pricing on various copper powder, please contact us freely at hwsales8@xuzhounano.com.

Thermal spraying powders Tungsten carbide cobalt WC-CO

    In recent years, the research of the tungsten carbide cobalt nanoparticles thermal spraying with nanostructure coatings become the new trend. as a wear resistant coating, due to its good the hardness and toughness, it is widely used in aerospace, metallurgy, machinery fields. Relative to the hard chromium plating, thermal spraying tungsten carbide cobalt ceramic coating have obvious advantages on abrasion resistance, corrosion resistance, fatigue resistance, what's more, it have fast preparation speed, low cost, good environment. in some application areas, such as aircraft landing gear, the thermal spraying WC2CoCr coating is replacing hard chrome plating.

    Nano tungsten carbide cobalt thermal spraying powders preparation from Hongwu nanometer:

1. the precursor solution preparation with soluble salt containing tungsten, cobalt mixing chemical composition.mix them evenly, spray drying, roasting, reduction and carbonization.getting Nanocrystalline WC-Co composite powders;

2. nano tungsten carbide cobalt WC-Co composite powders composition can be adjusted according to the using needs,such as adding some other alloying elements growth inhibitor, and the elements content can be accurately controlled.

3. nano tungsten carbide cobalt WC-Co composite powders, grain size of WC phase is 60nm with low content of impurities.

4. product technology processes mature sound, own a full set of equipment, low cost, large output, high cost performance.

Tungsten Carbide Cobalt Nanoparticles

    Tungsten carbide cobalt WC-CO nanoparticles introduction form Hongwu nanometer

1. Particle size:60nm

2. Purity:>99%

3.High hardness

4.High-wearing

5.Ratio: WC:Co=88:12/90:10/94:6, namely, WC-12CO,WC-10CO,WC-6CO

6: Property: High hardness & high-wearing--Tungsten carbide cobalt alloy nanoparticle have good properties of hardness, strength, high breaking and beating ductility as well as high electrical and thermal conductivity.

if you have any questions, please feel free to contact us at hwsales8@xuzhounano.com. thank you !

Yttria stabilized zirconia (YSZ) Zirconium oxide manufacturer introduction

Hongwu International Group LTD specializes in the manufacturing, sourcing, and worldwide distribution of yttria stabilized zirconia (YSZ).with advanced the method of coprecipitation in liquid phase,we have the conbined production capacity for dozens of tons per month. On the basis of Zirconia powder,we also produce many kinds of Zirconia grinding medias, Zirconia structure ceramics, and color Zirconia ceramics.the products  have been widely used in petrochemical industry, automobile electric powder industry, mining equipment, machine building industry, electronic ceramics, refractory, jewelry, etc.

Yttria-stabilized zirconia (YSZ) is a ceramic in which the crystal structure of zirconium dioxide is made stable at room temperature by an addition of yttrium oxide. 

yttria stabilized zirconia, Zirconium Oxide Nanopowder(ZrO2) Spec： 
U702: 70-80nm
U701: 0.3-0.5um, 4-5um. 99.99%+
U703: ZrO2-Yttria,ZrO2-3Y，94.7%, Tetragonal，dental and ceramic knive use
U705: ZrO2-Yttria,ZrO2-5Y，91.5%, Tetragonal
U708：ZrO2-Yttria,ZrO2-8Y，86.5%, solid oxide fuel cell (SOFC) materials，fuel battery use

Nano particle size of nano zirconia dental U703 has much effect on the sintering properties, strength toughness. under normal circumstances, the nano sized powder sintering temperature will reduce about 150 ℃ than the ordinary powder, the tiny ceramic particles become the motivation of the densification during sintering, easier to complete sintering;Especially ultrafine nano Zirconia is the most effective way to reduce defect size of the material, so the smaller particles within a certain range, the higher the strong toughness.HW NANO dental nano zirconia meet the above conditions, is a kind of promising dental porcelain material.

zirconia, is a course oxide that presents a monoclinic crystal structure at room temperature. However, the powder can be purified and processed synthetically at high temperatures, forming a cubic structure called cubic zirconia. The resulting material is hard, optically flawless and translucent, usually used for making precious stones or gas sensorszirconia, is a course oxide that presents a monoclinic crystal structure at room temperature. However, the powder can be purified and processed synthetically at high temperatures, forming a cubic structure called cubic zirconia. The resulting material is hard, optically flawless and translucent, usually used for making precious stones or gas sensors.

Our yttria stabilized zirconia (YSZ) is available in a wide range of quantities and specifications to meet your particular industrial or scientific application. For further technical information or pricing on yttria stabilized zirconia (YSZ), contact us at: hwsales8@xuzhounano.com.

Flexible transparent conductive materials silver nanowires

Flexible transparent conductive materials silver nanowires

If wearable is the big buzzword of CES this year, then "flexible" can't be far behind. silver nanowires are likely to enable the next generation of flexibly flexible touch panels, including turning your whole car dashboard into one vast finger-responsive surface.


That's because they're better at electrical conduction than indium tin oxide, the current touch-sensor material of choice, as well as being more readily applied to flexible plastic substrates. Meanwhile, they're also highly transparent. again, more so than the existing materials - opening the door to overlaying practically invisible touch sensors onto any surface without obscuring what's underneath.

It's not just touch panels, either. The highly-conductive silver nanowires also have applications in extra-efficient solar panels, and lighting panels, which also benefit from the fact that the nanowires are practically indestructible.

Silver nanowires (AgNWs) can be dispersed in water, ethanol IPA (isopropyl alcohol), ethylene glycol,epoxy resin or customer specified. for further info and prices on the silver nanowires, pls contact us at hwnano@xuzhounano.com.

Where to buy silver nanoparticles?

silver nanoparticles CAS No.7440-22-4


hongwu nanometer silver nanoparticles appear as different colored powders, depending on their size and morphology. These materials can be dissolved in different solvents, such as water, isopropanol and ethanol, to produce colloidal suspensions.The sizes of silver nanoparticles can be specified over a wide range, from 20nm to several hundred nanometers.

Silver Nanoparticles: Anti-Microbial Powder

Silver nanoparticles serve as an inorganic antibacterial powder and play a critical role in the suppression and killing of various pathogenic microorganisms such as Staphylococcus auras, Escherichia coli, etc.

The product is durable, has a non-oxidized black appearance, and exhibits many other properties. It can be used in household, medical, and health care supplies. The colloidal silver is capable of disinfecting water through sterilization.

Our silver nanoparticles is available in a wide range of quantities and specifications to meet your particular industrial or scientific application. For further technical information or pricing on silver nanoparticles, please contact us freely.