分金何莫来石化学式为()。分金何 A. Al2O3middot;2SiO2 B. 2Al2O3middot;SiO2 C. 3Al2O3middot;2SiO2
doi:10.1111/j.1151-2916.1929.tb18023.xZimmer, David CNeff, John MBlackwell Publishing LtdJournal of the American Ceramic Society
Sintering, crystallization, microstructure, and thermal expansion of Li 2 O·Al 2 O 3 ·4SiO 2 glass-ceramics doped with B 2 O 3 , P 2 O 5 , or (B 2 O 3 + P 2 O 5 ) have been investigated. On heating the glass powder compacts, the glassy phase first crystallized into high-...
3Al2O3·2SiO2films at relatively low scratch loads. Radial and lateral cracking were applied until final delamination and repeated chipping were achieved as the load increased. The intrinsic integrity of the 3Al2O3∙2SiO2film and the performance of the coated 3Al2O3·2SiO2/SiC system, ...
铬是一种银白色金属 化学性质稳定,以+2、+3和+6价为常见价态。工业上以铬铁矿(主要成分为FeO·Cr2O3,含有Al2O3、SiO2等杂质)为主要原料生产金属铬和重铬酸钠(Na2Cr2O7·2H2O),其
硼及其化合物在工业上有许多用途。以铁硼矿(主要成分为Mg2B2O5·H2O和Fe3O4,还有少量Fe2O3、FeO、CaO、Al2O3和SiO2等)为原料制备硼酸(H3BO3)的工艺流程如图所示:
铬是一种银白色金属 化学性质稳定,以+2、+3和+6价为常见价态。工业上以铬铁矿(主要成分为FeO·Cr2O3,含有Al2O3、SiO2等杂质)为主要原料生产金属铬和重铬酸钠(Na2Cr2O7·2H2O),其
structure (solids and liquidsaluminum, Alsilicon, Sicalcium, CaGESSNER, WZentralinst. Anorg. Chem., Akad. Wiss. DDR, DDR‐1199 BerlinMUELLER, DZentralinst. Anorg. Chem., Akad. Wiss. DDR, DDR‐1199 BerlinWILEY‐VCH Verlag GmbHCheminform...
doi:10.1002/zfch.19890290922No abstract is available for this article.Geßner WolfgangMüller DirkWiley‐VCH Verlag GmbH & Co. KGaAZeitschrift Für Chemie