| 金属铝对氧化锆制品的去稳定化行为 |
| |
| 引用本文： | 田晓利,薛群虎,薛崇勃,刘宁,徐伟,韩艳茹.金属铝对氧化锆制品的去稳定化行为[J].硅酸盐通报,2012,31(2):247-251. |
| |
| 作者姓名： | 田晓利 薛群虎 薛崇勃 刘宁 徐伟 韩艳茹 |
| |
| 作者单位： | 西安建筑科技大学材料科学与工程学院,西安710055;河南濮阳濮耐高温材料(集团)股份有限公司,濮阳457100;西安建筑科技大学材料科学与工程学院,西安,710055;河南濮阳濮耐高温材料(集团)股份有限公司,濮阳,457100 |
| |
| 基金项目： | 陕西省重点学科建设专项资金资助项目 |
| |
| 摘 要： | 采用物质吉布斯自南能函数法对金属铝造成氧化锆制品的去稳定化行为进行了热力学分析,并结合扫描电子显微镜(SEM)进行了试验验证.结果表明:(1)含锆质制品中,金属铝易与氧化锆的稳定剂氧化钙发生反应,生成层片状六铝酸钙,造成氧化锆中稳定剂脱溶,体积失稳；(2)金属铝易与氧化锆的稳定剂氧化镁进行反应,生成正八面体的镁铝尖晶石,造成氧化锆中稳定剂脱溶,体积失稳；(3)金属铝对氧化锆制品的去稳定化行为,可界定为原始层、脱溶过渡层和反应层三层.
|
| 关 键 词： | 金属铝 稳定氧化锆 稳定剂 去稳定化行为 热力学计算 |
Destabilizing Effect of Zirconia Products Caused by Aluminum |
| |
| TIAN Xiao-li
,
XUE Qun-hu
,
XUE Chong-bo
,
LIU Ning
,
XU Wei
,
HAN Yan-ru.Destabilizing Effect of Zirconia Products Caused by Aluminum[J].Bulletin of the Chinese Ceramic Society,2012,31(2):247-251. |
| |
| Authors: | TIAN Xiao-li XUE Qun-hu XUE Chong-bo LIU Ning XU Wei HAN Yan-ru |
| |
| Affiliation: | 1.School of Material Science and Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China; 2.Puyang Refractories Group Co.LTD,Puyang 457100,China) |
| |
| Abstract: | Thermodynamic analysis on destabilizing effect of zirconia products caused by aluminum is carried on by material Gibbs free energy function,and then the experimental verification was tested by scanning electron microscope(SEM).The results show that:(1) Aluminum reacts with calcium oxide,the stabilizer of zirconia,forming some sheet-like calcium hexaluminate.It results in the stabilizer loss and the volume destabilization of zirconia;(2) Aluminum reacts with magnesium oxide,the stabilizer of zirconia,and form some octahedral magnesia-alumina spinel.It results in the stabilizer loss and the volume destabilization of zirconia;(3) The destabilizing effect of zirconia caused by aluminum can be defined three layers,which are original layer,transition layer and reaction layer. |
| |
| Keywords: | aluminum stabilized zirconia stabilizer destabilizing effect thermodynamic calculation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《硅酸盐通报》浏览原始摘要信息 |
|
点击此处可从《硅酸盐通报》下载全文 |
|
