Infrared transparent mullite ceramics fabricated by solid-state reactive sintering

被引：16

作者：

Chen, Long ^{[1
,2
,3
]}

Wang, Zhengjuan ^{[1
,3
]}

Hu, Song ^{[1
,3
]}

Qin, Xianpeng ^{[1
,3
]}

Xue, Zhenhai ^{[1
,3
]}

Zhou, Guohong ^{[1
,2
,3
]}

Wang, Shiwei ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 200050, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 10期

基金：

国家重点研发计划;

关键词：

Mullite transparent ceramics; Solid-state reactive sintering; Mullitization; Densification process; MECHANICAL-PROPERTIES; YAG CERAMICS; YTTRIA; GEL;

D O I：

10.1016/j.ceramint.2021.01.238

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：

Infrared transparent mullite ceramics were fabricated by solid-state reactive sintering under vacuum without pressure. High purity ?-alumina and amorphous silica (molar ratio, 63: 37) powders were used as raw materials. The densification process and mullitization process of the mixed powders were investigated and compared with the sintering of mullite powder. As the sintering temperature increased to 1400 ?C, mullite formed and silica transformed into cristobalite. Cristobalite disappeared at 1600 ?C and ?-alumina did at 1650 ?C. However, ?-alumina precipitated when the temperature increased to 1750 ?C. For the sintering of mullite powder, shrinkage happened at 1400 ?C. While, shrinkage almost finished for the reactive sintering of alumina and silica. When reactive sintered at 1780 ?C, the transmittance of the mullite ceramics was the highest, which was 65% at 4.1 ?m. The method used in this work is promising for the preparation of large and complex shaped transparent mullite ceramics.

引用

页码：13762 / 13768

页数：7

共 28 条

[1]

Aksay I.A, 1987, CERAM MICROSTRUCT, P611

[2] MULLITE FOR STRUCTURAL, ELECTRONIC, AND OPTICAL APPLICATIONS [J].

AKSAY, IA ;

DABBS, DM ;

SARIKAYA, M .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1991, 74 (10) :2343-2358

[3] STABLE AND METASTABLE EQUILIBRIA IN SYSTEM SIO2-AL2O3 [J].

AKSAY, IA ;

PASK, JA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1975, 58 (11-1) :507-512

[4] ADM guidance-Ceramics: Fracture toughness testing and method selection [J].

Cesar, Paulo Francisco ;

Della Bona, Alvaro ;

Scherrer, Susanne S. ;

Tholey, Michael ;

van Noort, Richard ;

Vichi, Alessandro ;

Kelly, Robert ;

Lohbauer, Ulrich .

DENTAL MATERIALS, 2017, 33 (06) :575-584

[5] HIGH-TEMPERATURE MECHANICAL-PROPERTIES OF MULLITE UNDER COMPRESSION [J].

DOKKO, PC ;

PASK, JA ;

MAZDIYASNI, KS .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1977, 60 (3-4) :150-155

[6] Effect of polymorphism of Al2O3 on the sintering and microstructure of transparent MgAl2O4 ceramics [J].

Han, Dan ;

Zhang, Jian ;

Liu, Peng ;

Wang, Shiwei .

OPTICAL MATERIALS, 2017, 71 :62-65

[7] High-temperature strength of sapphire [J].

Harris, DC .

INORGANIC OPTICAL MATERIALS II, 2000, 4102 :25-36

[8] FABRICATION OF POLYCRYSTALLINE, TRANSPARENT YAG CERAMICS BY A SOLID-STATE REACTION METHOD [J].

IKESUE, A ;

FURUSATO, I ;

KAMATA, K .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (01) :225-228

[9]

JOHNSON SM, 1982, AM CERAM SOC BULL, V61, P838

[10]

KANZAKI S, 1985, J AM CERAM SOC, V68, pC6, DOI 10.1111/j.1151-2916.1985.tb15252.x

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