NDLI: Synthesis of bauxite based β-SiAlON by compound reduction nitridation

Content Provider	CiteSeerX
Author	Guo, Yanqin Li, A. Hongxia
Abstract	Abstract. The process of synthesizing bauxite based β-SiAlON by using carbon silicon composite reducing agent was studied. Specimens prepared by mixing bauxite (Al2O3 68%), carbon black and silicon are nitrided at 1100~1550 ℃ for 6h. The mass change ratio of the specimens are determined; Phase composition and microstructure of some specimens are examined by XRD, SEM and EDS. The results are compared with those of specimens using Si and C separately as reducing agent. It is found that at 1100~1200 ℃ only Si reacts with N2 and SiO2 to form Si2N2O; At 1300~1400℃, C takes part in reduction-nitridation with subsequent formation of SiAlON; At 1450~1550℃, there is noticeable increase in β-SiAlON formation, the optimum temperature is 1500℃. The amount of β-SiAlON formed is higher and crystale growth is better than that of single reducing agent.
File Format	PDF
Access Restriction	Open
Content Type	Text

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in