نتایج جستجو برای: پوشش cr2o3

تعداد نتایج: 25446  

ژورنال: علوم زمین 2011

افیولیت خوی در شمال باختر ایران میزبان چندین توده کرومیتیتی انبانی است. نهشته‌های کرومیتیتی ناحیه الند در این افیولیت به شکل‌های عدسی، تخته‌ای  و  رگه‌ای نامنظم در میان هارزبورژیت‌های تهی‌شده گوشته‌ای جای گرفته‌اند. کرومیتیت‌ها بافت‌های گوناگون توده‌ای، نواری، افشان، گرهکی و کاتاکلاستی دارند. این توده‌ها توسط پوششی از دونیت با ستبراهای مختلف احاطه شده‌اند. از نظر شیمی کانی،کرومیت‌ها با عدد کروم...

Journal: :The Journal of the Society of Chemical Industry, Japan 1963

Journal: :Journal of The Serbian Chemical Society 2021

The catalyst coking and production of undesired products during the transformation propane into propylene have been critical challenges in on purpose approach production. mechanism contributing to this challenge was theoretically investigated through analysis cracking reaction routes. study carried out employed use a density functional theory cluster order understand reactions that promote sear...

Journal: :The Mining-Geological-Petroleum Engineering Bulletin 2023

The rapid development of industry increases the demand and importance chromium. In this study, beneficiation possibilities representative chromite ore taken from Tokat Province with a laboratory type jig, spiral concentrator, shaking table multi gravity separator (MGS) were investigated. Appropriate particle size fractions fed into each device. Experimental studies shown as flow chart. gave bes...

Journal: :Journal of the Ceramic Association, Japan 1978

Journal: :Journal of Nuclear Materials 2021

The anticipated benefits of large grains in Cr2O3-doped UO2 pellets include improved mechanical and fission gas retention properties. To support the assessment release (FGR) from doped pellets, impact doping on diffusivity for in-reactor conditions must be understood. In this work, we tackle issue by informing model within BISON fuel performance code using material models developed at atomic sc...

In plasma sprayed nanostructured composite coatings with ceramic matrix, the feedstock must consist of nanoparticles of appropriate specifications. In this research, the procedure for production of Cr2O3-Ag agglomerated nanostructured composite powder to produce comosite coatings has been investigated. Nanopowders of Cr2O3 with 0, 2, 5, and 10 volume percentages of silver were dispersed to obta...

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