大众科技
大衆科技
대음과기
DAZHONG KEJI
2012年
1期
67-69
,共3页
高钠Al(OH)3%除钠%降温煅烧%α-Al2O3
高鈉Al(OH)3%除鈉%降溫煅燒%α-Al2O3
고납Al(OH)3%제납%강온단소%α-Al2O3
high sodium Al（OH）3%reducing sodium%hypothermia calcination%α-Al2O3
以含钠质量百分比高迭2．5％-3％的Al（OH）3为原料，通过添加除钠剂进行除钠，并结合氢氧化铝的差热一热重曲线，根据氧化铝相变机理来确定合理的烧结制度，同时研究了α-Al2O3晶种以及降温催化剂在氢氧化铝烧结过程中促进氧化铝相变、降低α-Al2O3的相变温度的幅度及其机理。
以含鈉質量百分比高迭2．5％-3％的Al（OH）3為原料，通過添加除鈉劑進行除鈉，併結閤氫氧化鋁的差熱一熱重麯線，根據氧化鋁相變機理來確定閤理的燒結製度，同時研究瞭α-Al2O3晶種以及降溫催化劑在氫氧化鋁燒結過程中促進氧化鋁相變、降低α-Al2O3的相變溫度的幅度及其機理。
이함납질량백분비고질2．5％-3％적Al（OH）3위원료，통과첨가제납제진행제납，병결합경양화려적차열일열중곡선，근거양화려상변궤리래학정합리적소결제도，동시연구료α-Al2O3정충이급강온최화제재경양화려소결과정중촉진양화려상변、강저α-Al2O3적상변온도적폭도급기궤리。
The Al（OH）3 material with sodium from 2.5% to 3% was used. The agent of reducing sodium was added. According m the mechanism of alumina phase change and the DTA-TG curve, a reasonable sintering system was determined. What＇s more, the range and mechanism of α-Al2O3 seed and hypothermia catalyst for promoting Al2O3 phase transformating and lowering α-Al2O3 phase transition temperature during sintering process were studied.
