B4C Boron Carbide

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Supplier Info.

Company Name Luoyang Best Abrasives Co., Ltd.
Membership Free member
Registration Date2015.09.23
Country/RegionChina
CityLuoyang
Contact Stone(Mr.)

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Product Attributes

- Brand Name Ori
- Place of Origin China
- Supply Type OEM Service
- Condition New
- Material B4C
- Usage abrasives or refractory
- Related Keywords boron carbide, B4C

Description by Manufacturer

Boron Carbide is one of the hardest materials known, ranking third behind diamond and cubic boron nitride. It is the hardest material produced in tonnage quantities. Originally discovered in mid 19th century as a by-product in the production of metal borides, boron carbide was only studied in detail since 1930.
Boron carbide powder (see figure 1) is mainly produced by reacting carbon with B2O3 in an electric arc furnace, through carbothermal reduction or by gas phase reactions. For commercial use B4C powders usually need to be milled and purified to remove metallic impurities.
In common with other non-oxide materials boron carbide is difficult to sinter to full density, with hot pressing or sinter HIP being required to achieve greater than 95% of theoretical density. Even using these techniques, in order to achieve sintering at realistic temperatures (e.g. 1900 - 2200°C), small quantities of dopants such as fine carbon, or silicon carbide are usually required.
As an alternative, B4C can be formed as a coating on a suitable substrate by vapour phase reaction techniques e.g. using boron halides or di-borane with methane or another chemical carbon source.

Property
Density (g.cm-3)	2.52
Melting Point (°C)	2445
Hardness (Knoop 100g) (kg.mm-2)	2900-3580
Fracture Toughness (MPa.m-?)	2.9 - 3.7
Young's Modulus (GPa)	450 - 470
Electrical Conductivity (at 25°C) (S)	140
Thermal Conductivity (at 25°C) (W/m.K)	30 - 42
Thermal Expansion Co-eff. x10-6 (°C)	5
Thermal neutron capture cross section (barn)	600

Applications

Abrasives

Due to its high hardness, boron carbide powder is used as an abrasive in polishing and lapping applications, and also as a loose abrasive in cutting applications such as water jet cutting. It can also be used for dressing diamond tools.

Nozzles

Nuclear applications

Its ability to absorb neutrons without forming long lived radio-nuclides make the material attractive as an absorbent for neutron radiation arising in nuclear power plants. Nuclear applications of boron carbide include shielding, and control rod and shut down pellets.

Ballistic Armour

Boron carbide, in conjunction with other materials also finds use as ballistic armour (including body or personal armour) where the combination of high hardness, high elastic modulus, and low density give the material an exceptionally high specific stopping power to defeat high velocity projectiles.

Other Applications

Other applications include ceramic tooling dies, precision toll parts, evaporating boats for materials testing and mortars and pestles.

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Boron Carbide Related Products

Main Export Markets

- Luoyang Best Abrasives Co., Ltd. is mainly exporting to Asia, Europe, South America, Australia

Company Profile

About Luoyang Best Abrasives Co., Ltd.

Membership Free member
Registration Date2015.09.23
Country/RegionChina
CityLuoyang
Contact Stone(Mr.)

Luoyang Best Abrasives Co., Ltd. has earned a strong reputation as a dependable producer of high-quality abrasive materials. Specializing in products like Brown Fused Alumina, White Fused Alumina, and Silicon Carbide, the company serves applications ranging from precision grinding and sandblasting to refractory systems. With a focus on innovation and stringent quality control, it has successfully expanded its presence across key markets in Asia and Europe, positioning itself as a trusted partner in the global abrasives industry.

Selling Categories

- Hardware >> Abrasives
- Minerals & Metallurgy >> Refractory

Keywords

brown fused alumina , white fused alumina , cryolite , potassium aluminium fluoride

Registration Date	2015/09/23(Year/Month/Date)
Buyer / Seller in EC21	Seller
Business Type	Manufacturer
Year established	2011
Employees total	6 - 10
Annual revenue	USD 1,000,001 - 2,000,000

Contact Information Order Credit Report

Company	Luoyang Best Abrasives Co., Ltd.
Address	Gucheng Village,Pingdeng Township,YichuanCounty, Luoyang City,Henan Province,P.R.CHINALuoyangHenan471000China
Phone	86 - 1352544 - 5432
Homepage	www.best-abrasives.com
Contact	Stone

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B4C Boron Carbide

Product Attributes

Description by Manufacturer

Property

Applications

Abrasives

Nozzles

Nuclear applications

Ballistic Armour

Other Applications

Product Image

Boron Carbide Related Products

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Main Export Markets

Company Profile

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