Characterization and mechanical properties of phosphate-kaolin clay

被引：11

作者：

Charfi, Alya ^{[1
]}

Sahnoun, Rym Dhouib ^{[1
]}

Bouaziz, Jamel ^{[1
]}

机构：

[1] Univ Sfax, Natl Sch Engn, Lab Ind Chem, Sfax 3038, Tunisia

来源：

POWDER TECHNOLOGY | 2013年 / 235卷

关键词：

Ceramics; X-ray diffraction; Thermal analysis (DTA; TGA); Infrared spectroscopy; Mechanical properties; MULLITE; ACID;

D O I：

10.1016/j.powtec.2012.11.021

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effects of phosphate additions on the mechanical and morphological properties of kaolin were investigated. Phosphate additions were orthophosphoric acid H3PO4, potassium dihydrogen phosphate KH2PO4, potassium monohydrogen phosphate K2HPO4 and potassium phosphate K3PO4. The phosphate additions were fixed at 10% w/w. The green and sintered phosphate-bonded products were characterized by means of X-ray diffraction (XRD), infrared spectroscopy (IR), thermal analysis (ATD-ATG), dilatometry, scanning electron microscopy (SEM) and the Brazilian test. The properties of the phosphate-bonded clay bodies were affected by new mineral phases resulting from the reaction between phosphates and kaolin, which subsequently enhanced the mechanical strength and the densification of sintered ceramic products. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：633 / 639

页数：7

共 30 条

[1] Achari S., 2003, AM CERAMIC SOC B, V82
[2] ALIPRANDI G., 1979, MATERIAUX REFRACTAIR, V7a
[3] Energy efficient process for making pyrophyllite-based ceramic tiles using phosphoric acid and mineralizers
Amritphale, SS
Bhasin, S
Chandra, N
[J]. CERAMICS INTERNATIONAL, 2006, 32 (02) : 181 - 187
[4] [Anonymous], 1964, REV MAT CONTROL TRAV, V580, P1
[5] ASTM C 496, 1984, STAND TEST METH SPLI, V0.042, P336
[6] Bartha P., 1971, BER DTSCH KERAM GESE, V48, P111
[7] Mechanical resistance of sintered fluorapatite
Ben Ayed, Foued
Bouaziz, Jamel
Bouzouita, Khaled
[J]. ANNALES DE CHIMIE-SCIENCE DES MATERIAUX, 2006, 31 (04): : 393 - 406
[8] BIENIAWSKI ZT, 1978, INT J ROCK MECH MIN, V15, P99
[9] The influence of phosphate on the properties of clay bricks
Bogahawatta, VTL
Poole, AB
[J]. APPLIED CLAY SCIENCE, 1996, 10 (06) : 461 - 475
[10] Variable temperature diffuse reflectance infrared Fourier transform spectroscopic investigation of the effect of ball milling on the water sorbed to kaolin
Breen, C.
Illes, J.
Yarwood, J.
Skuse, D. R.
[J]. VIBRATIONAL SPECTROSCOPY, 2007, 43 (02) : 366 - 379

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