Zirconium diboride ZrB2 powder price

Zirconium diboride ZrB2 powder price

Product Description

Describe:

Zirconium diboride (ZrB2) is a highly covalent refractory ceramic material with a hexagonal crystal structure. ZrB2 is an ultra high temperature ceramic (UHTC) with a melting point of 3246 °C. This along with its relatively low density of ~6.09 g/cm3 (measured density may be higher due to hafnium impurities) and good high temperature strength makes it a candidate for high temperature aerospace applications such as hypersonic flight or rocket propulsion systems. It is an unusual ceramic, having relatively high thermal and electrical conductivities, properties it shares with isostructural titanium diboride and hafnium diboride.

ZrB2 parts are usually hot pressed (pressure applied to the heated powder) and then machined to shape. Sintering of ZrB2 is hindered by the material's covalent nature and presence of surface oxides which increase grain coarsening before densification during sintering. Pressureless sintering of ZrB2 is possible with sintering additives such as boron carbide and carbon which react with the surface oxides to increase the driving force for sintering but mechanical properties are degraded compared to hot pressed ZrB2.[1]

Additions of ~30 vol% SiC to ZrB2 is often added to ZrB2 to improve oxidation resistance through SiC creating a protective oxide layer - similar to aluminum's protective alumina layer

Material Type: zirconium boride (ZrB2)

Purity of the analysed batch (HfB2+ZrB2)>99.9%(Hf:1.5%)

Physikalische Analyse:

CILAS um

D10 0.7

D50 1.8

D90 3.65

Technical parameters:

Features:

1. Nano zirconium diboride powder possesses high purity, narrow particle size distribution, large specific surface area.

2. Zirconium diboride nanoparticle has a high melting point (3040 °C), high hardness, high thermal conductivity, etc., is an excellent high temperature structural materials.

3. ZrB2 nanoparticle has metallicity which shows fantastic conductivity and its electric resistance is slightly lower than metal zirconium.

4. It is stable in a wide temperature range.

5. Good oxidation resistance in air and anti-corrosion ability.

Application:

1) Used as high temperature resistant materials in space industry and as wear-resistant and smooth solid material, cutting tools, temperature thermocouple protective tube as well as the electrolysis of molten compound electrode material.

2) It is particularly suitable for use as surface coating of rolling balls.

3) Used in special ceramic industry and refractory industry.

4) Used in nuclear industry and military industry.

Photo:

We have other chemicals products like hafnium diboride,hafnium dioxide,zirconium nitride,etc.pls visit website: http://chinawhasin.en.alibaba.com/ to find more.

Packaging & Shipping

Packing:

1. Vaccum packing,Plastic bags or drums.

2. According to customer's requirement.

Shipping:

1. Any kind of transport can accept.

2. We will choose the fastest and cheapest way for you.

Our Services

1. Reply your email within 24 hours.

2. Reply your TM/Skype/MSN/QQ within 24 hours.

3. Anything we can help in China,let us know.we'll do our best to service you.

4. Factory-visiting or Third-party inspection before shipment is welcomed.

5. Photos all-the-way for cargo tracing after order confirmation

6. Large stocking & lightning consignment

Company Information

Our company-Chinawhasin,which is founded in 2004,have 10 years experience in the industry.

Product including:

1. Zinc Sulphate(ZnSO4), Magnesium Sulphate(MgSO4), Manganese Sulfate(MnSO4),

2. Chromium nitride(CrN), Zirconium nitride(ZrN), Titanium nitride(TiN),

3. Zirconium boride (ZrB2), Hafnium boride (HfB2), Hafnium Dioxide(HfO2),

4. Titanium carbonitride(TiCN), Vanadium carbide(VC), Zirconium carbide(ZrC),

5. Chromium carbide(Cr3C2), Niobium carbide (NbC), Tantalum carbide(TaC),

6. Titanium carbide (TiC), Hafnium carbide(HfC), etc.

FAQ