silica,silicon oxide cristobalite- a white mineral consisting of silica; found in volcanic rocks quartz- a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities ...
1.Lacking physical form or shape. 2.Lacking organization; formless:"He helped me turn a deeply felt but amorphous idea into a coherent narrative"(James S. Hirsch). 3.Lacking a crystalline structure:Glass is an amorphous material. [From Greekamorphos:a-,without; seea-1+morphē,shape.] ...
Such hybrid materials have been produced in the form of amorphous silicates (xerogels) that indeed display unique properties different to those of the individual components14,15,16,17,18,19,20, but their random networks with broad pore-size distributions severely limit the shape and size ...
The invention provides a process for the production of amorphous silica from a silica-based material having a silica content of at least 90% comprising: a) heating said silica-based material with CaCl2, at a temperature in the range of about 900°C to about 1,200°C and in the presence ...
Related to Amorphous silica:diatomaceous earth,Crystalline silica silicaorsilicon dioxide,chemical compound, SiO2. It is insoluble in water, slightly soluble in alkalies, and soluble in dilute hydrofluoric acid. Pure silica is colorless to white. It occurs in several forms and is widely and abundant...
In recent years, several studies have suggested that the addition of amorphous silica (ASi) to soils may improve soil–plant–water relationships by enhancing the water-holding capacity of soils18,19, which has been attributed to the high surface area of ASi, along with its high adsorption pote...
amorphoussediment amorphousswitch amortization of defer amortization of initi amortizationoffixedas amortize convention amortizedcost amory thomas amos tori amount acerbity amount currency code amount financed amount of amortized i amount of commodities amount of exhaust emi amount of extra payme amount of ...
aSilica was found to form a highly dispersed amorphous phase on the support surface, which strongly affects the structural degradation phenomena, delaying the collapse of surface area, that is particularly significant at high vanadium content. 硅土在支持表面,被发现形成一个高度被分散的无定形的阶段...
Define Silicis. Silicis synonyms, Silicis pronunciation, Silicis translation, English dictionary definition of Silicis. n. Symbol Si A nonmetallic element occurring extensively in the earth's crust in silica and silicates, having both a brown amorphous a
[translate] asawdust 锯木屑 [translate] abedding 卧具 [translate] ametals exist in the form of nanoparticles on amorphous silica films 以nanoparticles的形式金属在无定形的硅土影片,存在 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语...