Forsman specializes in the production of ultra-high temperature ceramic powder

Hafnium carbide product details

Basic information

Hafnium carbide is an inorganic substance, belonging to non-metallic carbides, the chemical formula is HfC, its structure is NaCl-type face-centered cubic structure, is a metastable structure, this non-stoichiometric ratio of carbides exhibit the presence of free carbon, that is, HfCx (0.5

The preparation of hafnium carbide includes direct carbonization method, magnesium thermal reduction method, carbothermal reduction method, liquid phase pioneer conversion method, chemical vapor deposition method, sol gel method, discharge plasma sintering method, etc. Hafnium carbide powder has good electrical conductivity, good thermal conductivity, good impact resistance and good chemical stability. It is soluble in hydrofluoric acid, hot concentrated sulfuric acid and nitric acid.

Product description

Due to its high hardness and melting point, hafnium carbide can be used as a cemented carbide additive, powder metallurgy, high-temperature structural parts material, high-temperature spray material, cemented carbide, cermet cutting tools, ceramic materials and nuclear control materials.
(1) Hafnium carbide can be used as an additive and act as a deoxidizer in the steelmaking industry, which can greatly improve the quality of steel.
(2) Hafnium carbide can be used as the lining of high melting point metal melting crucibles, and can also be applied to tool coating materials.
(3) Hafnium carbide is an important functional material for the control rod and protection device of the nuclear reactor, and is an important material in the atomic energy industry.
(4) Hafnium carbide can be applied to the field of electronics and optics, used as a thermotrometer, field emission device, etc., in the electrical industry is the manufacture of X-ray tubes, microwave tubes cathode materials.
(5) Hafnium carbide can be used as a rocket thruster, used for rocket nozzles, rocket nozzles, rocket nose cones, and alloys containing hafnium carbide can be used as the front protection layer of rocket nozzles and glide aircraft.

Series product parameters

The product name	Hafnium carbide	density	12.6g/cm3	Coefficient of thermal expansion	6.73×10-6C-1
molecular formula	HfC	melting point	3890℃	Mohs hardness	9
Appearance form	Black powder	boiling point	4000℃	microhardness	2910kg/mm2
CAS#	12069-85-1	Resistivity	4.5×10-5Ω·cm	-	-
molecular weight	190.5325	electrical conductivity	2.2×104S/cm	-	-

The Forsman plant mainly produces ultra-high temperature ceramic powders, of which hafnium carbide is one. It can produce products with different particle sizes such as nanometer level, sub-micron level, and micron level. The particle sizes of the products that can be produced are 200nm, 500nm, 0.8μm, 1-2μm, which can be provided at the tonnage level, and other particle sizes can be customized by customers. The standard packaging is 2kg, 25kg, and the packaging specifications can be customized according to the customer's feeding quantity.

Further reading

Hafnium carbide can form solid solutions with many compounds (such as ZrC, TaC, etc.). For example, the composite carbides composed of HfC-4TaC have two phases in microstructure: the first phase is a common crystal of hafnium carbide-tantalum carbide; The other phase is a needle-like free graphite phase with an appearance ratio of 50:1. This "neareueutectic" hafnium carbide (HfC) product has good thermal stability and high melting point, and can be used as the throat material for rocket nozzles.

Related papers

[1]WU Jie. Preparation and structure of hafnium carbide ceramic nanopowder[D].Wuhan University of Technology,2018.

[2]Lu Dongliang. Study on the preparation of ultrafine hafnium carbide ceramic powder[D].Wuhan University of Technology,2016.

[3] High temperature resistant ceramic materials are expected to improve the performance of aerospace vehicles[J].Lubrication and Sealing,2017,42(01):33.

Forsman product features and technical advantages

Recommended product 1: Hafnium carbide 7202002 particle size 1-2μm

Forsman product test reports: XRD spectrogram, SEM scanning electron microscopy, laser particle size

Recommended product 2: Hafnium carbide 7202001 particle size 0.8μm

Forsman Product Test Report: SEM Scan Electron Microscopy

Recommended product three: 7202006 hafnium carbide particle size 100-200nm

Product packaging specifications

Product purchase Q&A

Q: How to control the size and distribution of hafnium carbide particle size?

A: The production of hafnium carbide with different particle sizes and distribution, the production process and synthesis method are also different, and it is necessary to control the appropriate raw material ratio, heating rate, holding time, ball mill and other factors. The company's research base is constantly trying to develop new processes, and more hafnium carbide products with different particle sizes and different distributions will appear.

Q: We use it in the lab, do you have small packages?

A: Yes, for laboratory needs, we generally have 100g/250g/500g/1kg and other packaging specifications to meet the needs of laboratory research users.

Q: I want to use sprayed hafnium carbide powder, do you have one?

A: There are many differences in spraying powder, because different spraying methods may have different particle size requirements for powder, if you have clear particle size requirements, we can to customize, if there is no clear particle size requirement, you can tell us what spraying method, we help you choose a few to try. If the demand is large, we can also build Grain.