نتایج جستجو برای: carbothermic reduction

تعداد نتایج: 491806  

Journal: :Journal of Mining and Metallurgy, Section B: Metallurgy 2014

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Journal: :Isij International 2022

In order to comprehensively utilize copper smelting slag, the effect of strengthening measures on reduction rate kinetics, magnetic separation reduced pellet and volatilization residual valuable constituents were investigated in present study. Milling for mechanical activation was most efficient method improve slag compared addition Na2CO3 catalyst high reactivity reducing agent. The metallizat...

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Journal: :Minerals 2018

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Journal: :Journal of Advanced Ceramics 2017

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Journal: :Transactions of the Japan Institute of Metals 1978

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Journal: :Journal of the Japan Institute of Metals and Materials 1983

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Journal: :MATERIALS TRANSACTIONS 2015

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Journal: :ISIJ International 2016

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ژورنال: مواد پیشرفته در مهندسی (استقلال) 2017
امیری مقدم, افشین, کلانتر, مهدی,

The aim of this investigation is obtaining WC-Co composite powder from WO3 and Co3O4 by in-situ and carbothermic reduction method using activated carbon as a reducing agent. In this study, cobalt and tungsten oxide powders with 17% carbon (30% more than stoichiometric value) were mixed by ball-milling under atmosphere of argon for 20 hours. Differential Thermal Analysis (DTA) and Therm...

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ژورنال: علم و مهندسی سرامیک 2022
abas zade, hasan, amiri moghaddam, afshin, naderi, hamed, shoja razavi, seyed reza,

WC-Co cermets are among the advanced engineering materials that are considered for their special properties such as abrasion resistance and high hardness. The aim of this study was to determine the optimal amount of carbon in raw materials and industrial production of WC-8Co cermet powder from metal oxides WO3, Co3O4 and activated carbon by solid carbothermic reduction method in situ and under ...

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