Molybdenum News Center

Molybdenum disilicide is an intermetallic compound between the ceramic and metal between its performance, combined with the way atoms are covalently mixed with metal. With the overall performance of ceramic and metal. MoSi2 high melting point (2030 ℃), it has excellent high temperature oxidation resistance, corrosion resistance, has a function in the medium under conditions to most acids, bases, salts and the like (excluding oxidizing acids and salts), with good conductivity, high thermal stability, but also resistant, sodium, tin, lead, lithium, bismuth molten metal etching ability. MoSi2 past, many scientists using the above-described characteristics, high-temperature manufacture MoSi2 heating elements, temperature thermocouple protection tube; melting heat exchanger manufacturing sodium, tin, lead, lithium, bismuth metal crucible and the reactor apparatus; further manufacture of aircraft , rockets, some parts of the missile. Over the past MoSi2 parts production are used to first create MoSi2 powder sintering or hot pressing and then cold production is made. This process enables the size and shape of MoSi2 products is greatly restricted. This process is used to produce the article there MoSi2 two fatal drawbacks, i.e., room temperature brittleness of a ceramic, a metal with a plastic, low heat resistance under high temperature. Chemical, petroleum, metallurgy, building materials industry is very appreciated MoSi2 excellent resistance to high temperature oxidation and corrosion resistance. However, due to manufacturing technology limitations, many parts can not be processed molding, combined with MoSi2 brittle at room temperature, low temperature strength restricting factors, so MoSi2 has been unable to promote the use of a wide range of heat-and corrosion engineering. The molybdenum disilicide gradient diffusion coating material product (hereinafter referred to as MDGM) the successful development of the three major constraints to promote the application of MoSi2 are solved. 

 

MDGM traditional MoSi2 product reborn after a new product, the product is in steel or superalloy substrate surface by energetic ion diffusion coating MoSi2, surface modification of the base material to form a new material with the overall performance of the two materials. At room temperature, the toughness of the base material to make MDGM not brittle, corrosion function assumed by the diffusion coating on the surface of MoSi2; at a high temperature, high temperature strength by selected superalloy base material decision, the surface temperature oxidation resistant responsibilities responsible MoSi2. Therefore, MDGM a listing on the chemical, petrochemical, metallurgy, building materials and machinery industry's favor. 

More molybdenum product: http://www.molybdenum.com.cn
Tel: 0592-5129696 Fax：0592-5129797
E-mail:  This email address is being protected from spambots. You need JavaScript enabled to view it.
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Price: http://www.chinatungsten.com