采用DTA、XRD、SEM分析方法研究了不同尾矿含量微晶玻璃的晶化行为和显微组织.利用Ozawa和Kissinger方程计算出析晶活化能E和Avrami常数n,结果表明,试样的n近似为3.0,以体析晶为主.当试样中尾矿含量为50%时,晶粒分布均匀且颗粒较小,尺寸约为0.2μm;当尾矿含量为70%时,析晶活化能最低,为582.96kJ/mol,主晶相均为钙长石.
参考文献
| [1] | 孙孝华;汪明朴;林建凉.一种新型钨尾矿微晶玻璃[J].中南大学学报,1997(05):448. |
| [2] | 陈国华,刘心宇.矿渣微晶玻璃的制备及展望[J].陶瓷,2002(04):16-20. |
| [3] | 匡敬忠,熊淑华.钨尾矿微晶玻璃的组成及制备[J].矿产综合利用,2003(03):37-40. |
| [4] | Kissinger H E .Variation of peak temperature with heating rate in different thermal analysis[J].J Res National Bureau Standards,1956,57(04):217. |
| [5] | Ozawa T .Kinetics of glass crystallization[J].Therm Anal,1970,15(02):301. |
| [6] | Ozawa T .Kinetics of Nonisothermal crystallization[J].Po-lymer,1971,12(01):150. |
| [7] | Matusiata K;Sakka S;Matsui Y.Determination of the acti-vation energy for crystal growth by DTA[J].Materials Science,1975(10):961. |
| [8] | Matusita K;Sakka S .Study on crystallization kinetics in gl-ass by differential thermal analysis[J].Thermochimica Acta,1979,33:351. |
| [9] | Matusiata K;Sakka S .Kinetic study on crystallization of glass by DTA-criterion on application of Kissinger plot[J].Non-cryst Sol,1980,38:741. |
| [10] | Abdel-Rahim M A;Ibrahim M M;Dongol M et al.Dif-ferential scanning calorimetric study of Bi10Se80In10 chalco-genide glass[J].Materials Science,1992,27(09):4685. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%