CAS号:12007-23-7
品名:硼化铪hafnium,λ<sup>2</sup>-boranylideneboron
中文别名:硼化铪
英文别名:Hafniumboride;HAFNIUMBORIDE,HFB(2);
分子式:B2H4Hf-
分子量:204.144
精确质量:205.996
Psa:0.0
EINECS号:234-500-7
MDL号:MFCD00016125
外观与性状:液体或固体
密度:10.5
熔点:3250ºC
生产方法:1.氯化铪、氢和溴化硼的混合物通过红热的钨丝可以制得硼化铪.
简介:Hafniumdiborideisanultrahightemperatureceramiccomposedofhafniumandboron.Ithasameltingtemperatureofabout3250degreesCelsius.Itisanunusualceramic,havingrelativelyhighthermalandelectricalconductivities,propertiesitshareswithisostructuraltitaniumdiborideandzirconiumdiboride.Itisagrey,metalliclookingmaterial.Hafniumdiboridehasahexagonalcrystalstructure,amolarmassof200.11gramspermole,andadensityof10.5gramspercubiccentimeter.
陶瓷