{"title":"不同温度下热处理对透明天然石英的美学改进","authors":"R. Sahoo, B. Dhal, S. Singh, B. K. Mishra","doi":"10.1504/IJNBM.2018.10015469","DOIUrl":null,"url":null,"abstract":"Attempt has been made by us to improve the aesthetic value of natural gem variety transparent quartz of Odisha through heat treatment with cobalt oxide powder and the results are reported. A series of experiments have been performed at different temperature with cobalt oxide as additive. The change in colour and chemistry on the surface of the treated stones with respect to the untreated one were compared. Visual observation indicated the blue tone and change in its intensity with increase in temperature. Phase change of materials after heat treatment has been analysed using thermogravimetric analysis. Qualitative elemental analysis using electron probe micro analyser confirmed the presence and change in cobalt content in the quartz matrix with variation in the treatment temperature. Moreover, in this work, improvement in aesthetic value of the quartz stone and its consequent change in surface chemical and physical characteristics before and after heat treatment at different temperatures have been compared and described.","PeriodicalId":13999,"journal":{"name":"International Journal of Nano and Biomaterials","volume":"7 1","pages":"231"},"PeriodicalIF":0.0000,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Aesthetic improvement of transparent natural quartz by heat treatment at different temperature\",\"authors\":\"R. Sahoo, B. Dhal, S. Singh, B. K. Mishra\",\"doi\":\"10.1504/IJNBM.2018.10015469\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Attempt has been made by us to improve the aesthetic value of natural gem variety transparent quartz of Odisha through heat treatment with cobalt oxide powder and the results are reported. A series of experiments have been performed at different temperature with cobalt oxide as additive. The change in colour and chemistry on the surface of the treated stones with respect to the untreated one were compared. Visual observation indicated the blue tone and change in its intensity with increase in temperature. Phase change of materials after heat treatment has been analysed using thermogravimetric analysis. Qualitative elemental analysis using electron probe micro analyser confirmed the presence and change in cobalt content in the quartz matrix with variation in the treatment temperature. Moreover, in this work, improvement in aesthetic value of the quartz stone and its consequent change in surface chemical and physical characteristics before and after heat treatment at different temperatures have been compared and described.\",\"PeriodicalId\":13999,\"journal\":{\"name\":\"International Journal of Nano and Biomaterials\",\"volume\":\"7 1\",\"pages\":\"231\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-08-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Nano and Biomaterials\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1504/IJNBM.2018.10015469\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Chemistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Nano and Biomaterials","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1504/IJNBM.2018.10015469","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Chemistry","Score":null,"Total":0}
Aesthetic improvement of transparent natural quartz by heat treatment at different temperature
Attempt has been made by us to improve the aesthetic value of natural gem variety transparent quartz of Odisha through heat treatment with cobalt oxide powder and the results are reported. A series of experiments have been performed at different temperature with cobalt oxide as additive. The change in colour and chemistry on the surface of the treated stones with respect to the untreated one were compared. Visual observation indicated the blue tone and change in its intensity with increase in temperature. Phase change of materials after heat treatment has been analysed using thermogravimetric analysis. Qualitative elemental analysis using electron probe micro analyser confirmed the presence and change in cobalt content in the quartz matrix with variation in the treatment temperature. Moreover, in this work, improvement in aesthetic value of the quartz stone and its consequent change in surface chemical and physical characteristics before and after heat treatment at different temperatures have been compared and described.
期刊介绍:
In recent years, frontiers of research in engineering, science and technology have been driven by developments in nanomaterials, encompassing a diverse range of disciplines such as materials science, biomedical engineering, nanomedicine and biology, manufacturing technology, biotechnology, nanotechnology, and nanoelectronics. IJNBM provides an interdisciplinary vehicle covering these fields. Advanced materials inspired by biological systems and processes are likely to influence the development of novel technologies for a wide variety of applications from vaccines to artificial tissues and organs to quantum computers. Topics covered include Nanostructured materials/surfaces/interfaces Synthesis of nanostructures Biological/biomedical materials Artificial organs/tissues Tissue engineering Bioengineering materials Medical devices Functional/structural nanomaterials Carbon-based materials Nanomaterials characterisation Novel applications of nanomaterials Modelling of behaviour of nanomaterials Nanomaterials for biomedical applications Biological response to nanomaterials.