On the effects of LiF on the synthesis and reactive sintering of gahnite (ZnAl2O4)

被引：18

作者：

Sokol, Maxim ^{[1
]}

Meir, Shay ^{[1
]}

Strumza, Einat ^{[1
]}

Kalabukhov, Sergey ^{[1
]}

Hayun, Shmuel ^{[1
]}

Frage, Nachum ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Mat Engn, POB 653, IL-84105 Beer Sheva, Israel

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 17期

关键词：

Gahnite; Mechanical properties; Reactive sintering synthesis; Spark plasma sintering; Transparency; ALUMINATE SPINEL; HEAT-CAPACITY; PRESSURE;

D O I：

10.1016/j.ceramint.2017.08.005

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of LiF on the synthesis and reactive sintering of polycrystalline gahnite (zinc aluminate spinel, ZnAl2O4) were studied using XRD, high-temperature simultaneous thermal analysis and a spark plasma sintering (SPS) apparatus. It was demonstrated that the LiF reduces the onset of synthesis by about 200 degrees C and plays an important role in the densification process. SPS consolidation of a LiF-doped ZnO-Al2O4 mixture under an applied pressure of 150 MPa and at a sintering temperature of 1100 degrees C for 20 min generated fully dense gahnite with adequate transparency and mechanical properties.

引用

页码：14891 / 14896

页数：6

共 28 条

[1] Structural relaxation in tetrahedrally coordinated Co2+ along the gahnite-Co-aluminate spinel solid solution [J].