(長(zhǎng)沙隆泰科技有限公司， 長(zhǎng)沙 410013)
摘 要: 以74 μm錳粉為原料，在氫氣和氮?dú)獾幕旌蠚狻?750 ℃以及保溫2 h的條件下于微波反應(yīng)器中合成氮含量為7.75%（質(zhì)量分?jǐn)?shù)）的氮化錳。 研究了粉末粒度、合成溫度、 合成保溫時(shí)間及合成氣氛對(duì)合成產(chǎn)物氮含量的影響。 結(jié)果表明： 氮化氣氛需要?dú)錃夂偷獨(dú)獾幕旌蠚怏w， 氮化氣氛中少量的氫促進(jìn)了原料氮化和除去雜質(zhì)氧。 微波高溫合成技術(shù)的合成溫度和合成時(shí)間較傳統(tǒng)工藝具有明顯的優(yōu)勢(shì)。
關(guān)鍵字: 氮化錳； 鐵合金； 微波合成； 傳統(tǒng)合成
（Changsha Longtech Co. LTD., Changsha 410013, China）
Abstract: The nitro-manganese with nitrogen content up to 7.75% was synthesed using 74 μm manganese powder as materials under condition of H2 and N2 mixture atmosphere, 750 ℃ and holding time 2 h in microwave applicator. The effects of particle size, synthesis temperature, holding time and reaction atmosphere were studied. The results show that the nitration atmosphere is mixture of N2(95%) and H2(5%). The small amounts of hydrogen in the nitrification atmosphere accelerates the nitrification of materials and purifies the oxygen impurities. The microwave synthesis is superior to conventional nitration in peak temperature and holding time.
Key words: manganese nitride; ferro-alloy; microwave synthesis; conventional synthesis
