In the paper projected capacity,production and selling,producers of Molybdenum disilicide in China and proposal for developing in future were described.
叙述了我国二硅化钼的设计能力、产销状况、生产厂家,提出我国二硅化钼今后发展的建议。
单词 | Molybdenum disilicide |
释义 |
Molybdenum disilicide
英语例句库
In the paper projected capacity,production and selling,producers of Molybdenum disilicide in China and proposal for developing in future were described. 叙述了我国二硅化钼的设计能力、产销状况、生产厂家,提出我国二硅化钼今后发展的建议。
中文百科
二硅化钼![]() 二硅化钼(Molybdenum disilicide, MoSi2 )是一种钼的硅化合物,由于两种原子的半径相差不大,电负性比较接近,所以其具有近似于金属与陶瓷的性质。熔点高达2030℃,具有导电性,在高温下表面能形成二氧化硅钝化层以阻止进一步氧化,其外观为灰色金属色泽,源于其四方α-型晶体结构,也存在六角形但不稳定的β-改性晶体结构 。不溶于大部分酸,但可溶于硝酸和氢氟酸。 虽然二硅化钼具有在1000℃以上高温下有极高的抗氧化性和杨氏模量,但低温时易脆,另外超过1200℃高温会丧失蠕变能力而限制了其作为结构材料的应用,但结合其他材料作为复合材料来提供移动效果。
英语百科
Molybdenum disilicide 二硅化钼![]() Molybdenum disilicide (MoSi2, or molybdenum silicide), an intermetallic compound, a silicide of molybdenum, is a refractory ceramic with primary use in heating elements. It has moderate density, melting point 2030 °C, and is electrically conductive. At high temperatures it forms a passivation layer of silicon dioxide, protecting it from further oxidation. It is a gray metallic-looking material with tetragonal crystal structure (alpha-modification); its beta-modification is hexagonal and unstable. It is insoluble in most acids but soluble in nitric acid and hydrofluoric acid. |
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