Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials
Main Author: | |
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Publication Date: | 2014 |
Other Authors: | , , , |
Format: | Article |
Language: | eng |
Source: | Cerâmica (São Paulo. Online) |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132014000400013 |
Summary: | This work addresses the development of an eventual low cost ceramic insulating or microfiltration membrane supports from inexpensive raw materials such Eloued quartz sand (EQS) and calcium phosphate (CP) using uniaxially dry compaction method. The prepared samples were sintered at different temperatures ranging between 1200 and 1550 ºC. Subsequently, the effects of sintering temperature and amount of CP on samples proprieties were investigated. It is observed that X-ray diffracion measurements confirmed that EQS was transformed into cristobalite and tridymite phases when both sintering temperature and holding time were increased. This transformation is favored with increasing amount of CP, it is observed also formation of CaSiO3 and Ca(Fe)(Al)PO4. The SEM images of the samples sintered at different temperatures illustrate that silica grains, CP grains, intergranular phase contents (Si, Ca, P, and O) and an important open porosity depend on the sintering temperature. The porosity ratio changes in the range between 37% and 34% according to sintering temperature and to CP content; these values are in good agreement with SEM images. The thermal expansion behavior shows a weak expansion in the range of temperature between 600 and 1000 ºC which is situated between 1.27% and 1.33% (variation of 0.05% at 400 ºC). |
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Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materialsquartz sandcalcium phosphatesinteringporositycristobaliteThis work addresses the development of an eventual low cost ceramic insulating or microfiltration membrane supports from inexpensive raw materials such Eloued quartz sand (EQS) and calcium phosphate (CP) using uniaxially dry compaction method. The prepared samples were sintered at different temperatures ranging between 1200 and 1550 ºC. Subsequently, the effects of sintering temperature and amount of CP on samples proprieties were investigated. It is observed that X-ray diffracion measurements confirmed that EQS was transformed into cristobalite and tridymite phases when both sintering temperature and holding time were increased. This transformation is favored with increasing amount of CP, it is observed also formation of CaSiO3 and Ca(Fe)(Al)PO4. The SEM images of the samples sintered at different temperatures illustrate that silica grains, CP grains, intergranular phase contents (Si, Ca, P, and O) and an important open porosity depend on the sintering temperature. The porosity ratio changes in the range between 37% and 34% according to sintering temperature and to CP content; these values are in good agreement with SEM images. The thermal expansion behavior shows a weak expansion in the range of temperature between 600 and 1000 ºC which is situated between 1.27% and 1.33% (variation of 0.05% at 400 ºC).Associação Brasileira de Cerâmica2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132014000400013Cerâmica v.60 n.356 2014reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0366-69132014000400013info:eu-repo/semantics/openAccessFoughali,L.Harabi,A.Bonnet,J. P.Smith,D.Boudaira,B.eng2015-01-26T00:00:00Zoai:scielo:S0366-69132014000400013Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2015-01-26T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials |
title |
Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials |
spellingShingle |
Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials Foughali,L. quartz sand calcium phosphate sintering porosity cristobalite |
title_short |
Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials |
title_full |
Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials |
title_fullStr |
Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials |
title_full_unstemmed |
Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials |
title_sort |
Effect of calcium phosphate addition on sintering of El-Oued sand quartz raw materials |
author |
Foughali,L. |
author_facet |
Foughali,L. Harabi,A. Bonnet,J. P. Smith,D. Boudaira,B. |
author_role |
author |
author2 |
Harabi,A. Bonnet,J. P. Smith,D. Boudaira,B. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Foughali,L. Harabi,A. Bonnet,J. P. Smith,D. Boudaira,B. |
dc.subject.por.fl_str_mv |
quartz sand calcium phosphate sintering porosity cristobalite |
topic |
quartz sand calcium phosphate sintering porosity cristobalite |
description |
This work addresses the development of an eventual low cost ceramic insulating or microfiltration membrane supports from inexpensive raw materials such Eloued quartz sand (EQS) and calcium phosphate (CP) using uniaxially dry compaction method. The prepared samples were sintered at different temperatures ranging between 1200 and 1550 ºC. Subsequently, the effects of sintering temperature and amount of CP on samples proprieties were investigated. It is observed that X-ray diffracion measurements confirmed that EQS was transformed into cristobalite and tridymite phases when both sintering temperature and holding time were increased. This transformation is favored with increasing amount of CP, it is observed also formation of CaSiO3 and Ca(Fe)(Al)PO4. The SEM images of the samples sintered at different temperatures illustrate that silica grains, CP grains, intergranular phase contents (Si, Ca, P, and O) and an important open porosity depend on the sintering temperature. The porosity ratio changes in the range between 37% and 34% according to sintering temperature and to CP content; these values are in good agreement with SEM images. The thermal expansion behavior shows a weak expansion in the range of temperature between 600 and 1000 ºC which is situated between 1.27% and 1.33% (variation of 0.05% at 400 ºC). |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132014000400013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132014000400013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0366-69132014000400013 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Cerâmica |
publisher.none.fl_str_mv |
Associação Brasileira de Cerâmica |
dc.source.none.fl_str_mv |
Cerâmica v.60 n.356 2014 reponame:Cerâmica (São Paulo. Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Cerâmica (São Paulo. Online) |
collection |
Cerâmica (São Paulo. Online) |
repository.name.fl_str_mv |
Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
ceram.abc@gmail.com||ceram.abc@gmail.com |
_version_ |
1748936783036416000 |