The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim

Oryza sativa straw (rice straw) is a natural resource that has potential as a raw material in the ceramic field. Rice straw ash (RSA) contains high silica (SiO2) after through the calcination process. The purpose of this study was to investigate on the effects of crystalline glaze using a rice straw...

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Main Author:	Ibrahim, Amirul Azani
Format:	Thesis
Language:	English
Published:	2021
Subjects:	Clay industries Ceramics Glass
Online Access:	https://ir.uitm.edu.my/id/eprint/60098/1/60098.pdf
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id	my-uitm-ir.60098
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spelling	my-uitm-ir.600982022-05-23T02:23:37Z The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim 2021-10 Ibrahim, Amirul Azani Clay industries. Ceramics. Glass Oryza sativa straw (rice straw) is a natural resource that has potential as a raw material in the ceramic field. Rice straw ash (RSA) contains high silica (SiO2) after through the calcination process. The purpose of this study was to investigate on the effects of crystalline glaze using a rice straw ash as alternative substance for silica in the glaze formulation. Silica is significant material was used in the crystalline glaze to react with zinc oxide to seeding crystals as willemite (Zn2SiO4) in the form of spherulites during the firing process. Malaysia is distinctive of the prominent producers of paddy. It has gained 0.48 Million tonnes of rice husk with 3, 176, 593.2 tonnes production of rice straw in a year, this residue is still not fully utilized in Malaysia. RSA was different with conventional source, because SiO2 content from sand, quartz and flint it takes a long time to replace this source again. The aims of the present study are to identify the optimum calcination temperature of rice straw ash (RSA). Next, to formulate the optimum rice straw ash addition in crystalline glaze formulation and to determine the optimum firing temperature of crystalline glaze with the addition of rice straw ash. This research uses experimental method such as the calcination of rice straw at 700°C, 800°C, 900°C and 1000°C and also X-ray fluorescence (XRF) test was performed to investigated the chemical composition in RSA followed by X-ray diffraction (XRD) test for determine the SiO2 phases. Besides, the RSA was added in glaze formulation proportionally from 0% until 17% to identify the potential conventional silica can be replaced with RSA. All samples are fired at various of gloss temperature and involve with crystalline glaze test such as the investigation of various and crystallization temperature, glaze thickness and flowing test. The morphology of crystalline structure on the ceramic substrate body was identified using visual observation. In summary, amorphous silica derives from RSA bring the high silica content and provides a potential alternative material for silica in crystalline glaze formulation, SiO2 content in rice straw ash bind with zinc oxide to encourage the nucleus crystal seed. From XRF test, 89.7% silica content was determined in RSA and the results also show apparent growth of crystals on the ceramic substrate samples with different effects. 2021-10 Thesis https://ir.uitm.edu.my/id/eprint/60098/ https://ir.uitm.edu.my/id/eprint/60098/1/60098.pdf text en public masters Universiti Teknologi MARA Faculty of Art and Design
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
topic	Clay industries Ceramics Glass
spellingShingle	Clay industries Ceramics Glass Ibrahim, Amirul Azani The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim
description	Oryza sativa straw (rice straw) is a natural resource that has potential as a raw material in the ceramic field. Rice straw ash (RSA) contains high silica (SiO2) after through the calcination process. The purpose of this study was to investigate on the effects of crystalline glaze using a rice straw ash as alternative substance for silica in the glaze formulation. Silica is significant material was used in the crystalline glaze to react with zinc oxide to seeding crystals as willemite (Zn2SiO4) in the form of spherulites during the firing process. Malaysia is distinctive of the prominent producers of paddy. It has gained 0.48 Million tonnes of rice husk with 3, 176, 593.2 tonnes production of rice straw in a year, this residue is still not fully utilized in Malaysia. RSA was different with conventional source, because SiO2 content from sand, quartz and flint it takes a long time to replace this source again. The aims of the present study are to identify the optimum calcination temperature of rice straw ash (RSA). Next, to formulate the optimum rice straw ash addition in crystalline glaze formulation and to determine the optimum firing temperature of crystalline glaze with the addition of rice straw ash. This research uses experimental method such as the calcination of rice straw at 700°C, 800°C, 900°C and 1000°C and also X-ray fluorescence (XRF) test was performed to investigated the chemical composition in RSA followed by X-ray diffraction (XRD) test for determine the SiO2 phases. Besides, the RSA was added in glaze formulation proportionally from 0% until 17% to identify the potential conventional silica can be replaced with RSA. All samples are fired at various of gloss temperature and involve with crystalline glaze test such as the investigation of various and crystallization temperature, glaze thickness and flowing test. The morphology of crystalline structure on the ceramic substrate body was identified using visual observation. In summary, amorphous silica derives from RSA bring the high silica content and provides a potential alternative material for silica in crystalline glaze formulation, SiO2 content in rice straw ash bind with zinc oxide to encourage the nucleus crystal seed. From XRF test, 89.7% silica content was determined in RSA and the results also show apparent growth of crystals on the ceramic substrate samples with different effects.
format	Thesis
qualification_level	Master's degree
author	Ibrahim, Amirul Azani
author_facet	Ibrahim, Amirul Azani
author_sort	Ibrahim, Amirul Azani
title	The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim
title_short	The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim
title_full	The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim
title_fullStr	The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim
title_full_unstemmed	The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim
title_sort	role of oryza sativa straw ash in ceramic crystalline glaze / amirul azani ibrahim
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Art and Design
publishDate	2021
url	https://ir.uitm.edu.my/id/eprint/60098/1/60098.pdf
_version_	1783735084774326272

The role of oryza sativa straw ash in ceramic crystalline glaze / Amirul Azani Ibrahim

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