Effect of hydromagnesite on the hydration of hydratable alumina and properties of corundum-based castables

被引：5

作者：

Li, Ye ^{[1
]}

Zhang, Hongrui ^{[1
]}

Guo, Liu ^{[1
]}

Zhang, Peixiong ^{[1
]}

Wang, Gang ^{[2
]}

Zhai, Pengtao ^{[3
]}

Lei, Lei ^{[4
]}

Chen, Liugang ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Mat Sci & Engn, Henan Key Lab High Temp Funct Ceram, Zhengzhou 450001, Henan, Peoples R China

[2] Refractories Res Co Ltd, Sinosteel Luoyang Inst, State Key Lab Adv Refractories, Xiyuan Rd 43, Luoyang 471023, Peoples R China

[3] Henan Univ Econ & Law, Sch Engn Management & Real Estate, Jinshui East Rd 180, Zhengzhou 450046, Peoples R China

[4] Tech Univ Munich, Chair Construction Chem, Lichtenbergstr 4, D-85747 Garching, Germany

来源：

CERAMICS INTERNATIONAL | 2022年 / 48卷 / 24期

基金：

中国国家自然科学基金;

关键词：

Hydratable alumina; Hydromagnesite; Hydration; Castables; Thermo-mechanical properties; MGO; REHYDRATION; MECHANISM; EVOLUTION; ENERGY; CALCINATION; RESISTANCE; BOEHMITE; BEHAVIOR; FRACTURE;

D O I：

10.1016/j.ceramint.2022.08.198

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：

Hydratable alumina (HA) was premixed with hydromagnesite (BMC) to investigate the BMC impact on the hydration behavior of HA and the thermo-mechanical properties of HA bonded (HAB) castables. The phase composition, microstructure and mass changes of dried HA samples, were characterized by XRD, SEM, and TG, respectively. Flow ability, microstructure, and thermo-mechanical properties of HAB castables were studied. Results indicated that BMC effectively lowered HA hydration rate due to the decreased specific surface area. The hot modulus of rupture strength of castables was improved because the sintering of Al2O3 was enhanced by the MgO from BMC decomposition.

引用

页码：36383 / 36392

页数：10

共 39 条

[1] Boehmite nanopowder recovered from aluminum cans waste as a potential adsorbent for the treatment of oilfield produced water
Abdelkader, Adel
Hussien, Basem M.
Fawzy, Eman M.
Ibrahim, Asma A.
[J]. APPLIED PETROCHEMICAL RESEARCH, 2021, 11 (02) : 137 - 146
[2] An insight into the changes in the thermal analysis curves of boehmite with mechanical activation
Alex, T. C.
[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2014, 117 (01) : 163 - 171
[3] CRITICAL CONCENTRATION OF MGO FOR THE PREVENTION OF ABNORMAL GRAIN-GROWTH IN ALUMINA
BAE, SI
BAIK, S
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (10) : 2499 - 2504
[4] Low temperature rehydration of thermally dehydroxylated Bayer-gibbsite, evolution and transformation of phases
Baranyai, Viktor Zsolt
Kristaly, Ferenc
Szucs, Istvan
[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2017, 129 (03) : 1353 - 1365
[5] EFFECT OF MGO SOLUTE ON MICROSTRUCTURE DEVELOPMENT IN AL2O3
BERRY, KA
HARMER, MP
[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1986, 69 (02) : 143 - 149
[6] Specific signatures of α-alumina powders prepared by calcination of boehmite or gibbsite
Boumaza, A.
Djelloul, A.
Guerrab, F.
[J]. POWDER TECHNOLOGY, 2010, 201 (02) : 177 - 180
[7] Selection of binders for in situ spinel refractory castables
Braulio, M. A. L.
Bittencourt, L. R. M.
Pandolfelli, V. C.
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2009, 29 (13) : 2727 - 2735
[8] Some New Perspective on the Reaction Mechanism of MgO-SiO2-H2O System
Chen, Junhong
Li, Tong
Li, Xiaoping
Chou, Kuo-Chih
Hou, Xinmei
[J]. INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2016, 13 (06) : 1164 - 1172
[9] Low temperature synthesis of forsterite from hydromagnesite and fumed silica mixture
Chen, Liugang
Ye, Guotian
Wang, Qingfeng
Blanpain, Bart
Malfliet, Annelies
Guo, Muxing
[J]. CERAMICS INTERNATIONAL, 2015, 41 (02) : 2234 - 2239
[10] Guo L., 2020, NAIHUO CAILIAO, V54, P287

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