Powder Modification Technology and Preparation of MgAl2O4 Transparent Ceramics by Hot Pressing

被引：0

作者：

Guo, L. ^{[1
]}

Zhao, Y. ^{[1
]}

Xu, S. ^{[2
]}

Shi, H. ^{[1
]}

Zheng, A. ^{[1
]}

Ma, Y. ^{[1
]}

机构：

[1] GRINM Guojing Adv Mat Co Ltd, Gen Res Inst Nonferrous Met, Langfang 065001, Peoples R China

[2] Zhengzhou Univ, Zhengzhou 450000, Peoples R China

来源：

JOURNAL OF CERAMIC SCIENCE AND TECHNOLOGY | 2022年 / 13卷 / 02期

关键词：

Powder modification technology; powder characterization; optical properties; hot pressing; MAGNESIUM ALUMINATE SPINEL; FABRICATION; LIF;

D O I：

10.4416/JCST2022-00007

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：

Hot-pressed MgAl2O4 transparent ceramics were successfully prepared based on powder modification technology using commercial MgAl2O4 powder. With a 2-wt% polyvinyl alcohol (PVA) addition and the powder modification treatment, the average particle size of the powder is 70 - 150 nm, the specific surface area is 32.16 m2/g, and the median diameter (D (50)) is 7.2730 lm. Concluding the research about the effect of LiF on the properties of hot -pressed MgAl2O4 ceramics prepared based on powder modification technology, hot-press sintering proceeded well with a doping of 2 wt% PVA and 1 wt% LiF, and the mean maximum transmittance within the wave length range of 400 - 800 nm and 3 - 5 lm is 73.48 % and 83.09 % respectively, and the average grain size is 20 - 40 lm. XRD (X-ray diffraction) and ICP (Inductively Coupled Plasma) analysis of hot-pressed MgAl2O4 transparent ceramics indicate that the Li elements in hot ceramics did not but exist as

引用

页码：113 / 120

页数：8

共 28 条

[1] Development of synthesis and granulation process of MgAl2O4 powder for the fabrication of transparent ceramic [J].

Alhaji, A. ;

Taherian, M. H. ;

Ghorbani, S. ;

Sharifnia, S. A. .

OPTICAL MATERIALS, 2019, 98

[2] Influence of stoichiometry on fracture behaviour of magnesium aluminate spinels at 1200 degrees C [J].

Baudin, C ;

Pena, P .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1997, 17 (12) :1501-1511

[3]

BELOV SF, 1984, INORG MATER+, V20, P1675

[4] Sintering Analysis of a Fine-Grained Alumina-Magnesia Spinel Powder [J].

Benameur, Nassira ;

Bernard-Granger, Guillaume ;

Addad, Ahmed ;

Raffy, Stephane ;

Guizard, Christian .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2011, 94 (05) :1388-1396

[5] Fine-grained transparent MgAl2O4 spinel obtained by spark plasma sintering of commercially available nanopowders [J].

Bonnefont, Guillaume ;

Fantozzi, Gilbert ;

Trombert, Sandrine ;

Bonneau, Lionel .

CERAMICS INTERNATIONAL, 2012, 38 (01) :131-140

[6] TRANSLUCENT SINTERED MGAL2O4 [J].

BRATTON, RJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1974, 57 (07) :283-286

[7] Fifty Years of Research and Development Coming to Fruition; Unraveling the Complex Interactions during Processing of Transparent Magnesium Aluminate (MgAl2O4) Spinel [J].

du Merac, Marc Rubat ;

Kleebe, Hans-Joachim ;

Mueller, Mathis M. ;

Reimanis, Ivar E. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2013, 96 (11) :3341-3365

[8] Production and characterization of transparent MgAl2O4 prepared by hot pressing [J].

Esposito, Laura ;

Piancastelli, Andreana ;

Martelli, Stefano .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2013, 33 (04) :737-747

[9] Evaluation of hot pressing and hot isostastic pressing parameters on the optical properties of spinel [J].

Gilde, G ;

Patel, P ;

Patterson, P ;

Blodgett, D ;

Duncan, D ;

Hahn, D .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2005, 88 (10) :2747-2751

[10] History of development of polycrystalline optical spinel in the U.S. [J].

Harris, DC .

Window and Dome Technologies and Materials IX, 2005, 5786 :1-22

← 1 2 3 →