Nitridation of Ti-B-AI-AI2O3Composite Powder

Özdemir; F. Çinar Şahin; O. Yücel

doi:10.1515/HTMP.2001.20.5-6.429

Nitridation of Ti-B-AI-AI₂O₃Composite Powder

Metalurji ve Malzeme Müh.Böl.

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

Özet

The preparation of Ti-Al-B-N composite ceramic powders from Ti-Al-B composites by nitridation under an ammonia atmosphere has been studied. For obtaining the effects of process parameters such as time and temperature on nitride formation, Ti-Al-B composite powder prepared by thermite ignition was used as a starting material in this work. The reaction products were examined via X-ray diffraction (XRD) and microanalysis using an energy dispersive system attached to a scanning electron microscope (SEM). The X-ray and SEM observations indicate that the nitride formation is confirmed at temperature above 1273 K within 2 hours under a NH₃gas flow rate of 33 1/h. Although TiN-AlN-BN composite powders were obtained at 1723 K in 6 hours under a NH₃gas flow rate of 33 1/h, a small amount of intermetallic compound such as AIB₂and TiB₂also remains in the product.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	429-435
Sayfa sayısı	7
Dergi	High Temperature Materials and Processes
Hacim	20
Basın numarası	5-6
DOI'lar	https://doi.org/10.1515/HTMP.2001.20.5-6.429
Yayın durumu	Yayınlandı - 2001

Finansman

The authors are grateful to I.T.U. Research Foundation for its financial support to conduct this research. They thank H. Sesigur, Sise Cam A.§., Dept. of Glass Research, Istanbul, Turkey for X-ray diffraction studies, O.L. Ovecoglu, and V. Gunay for valuable discussions.

Finansörler
I.T.U. Research Foundation

Belgeye Erişim

10.1515/HTMP.2001.20.5-6.429

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Nitridation of Ti-B-AI-AI2O3Composite Powder",

abstract = "The preparation of Ti-Al-B-N composite ceramic powders from Ti-Al-B composites by nitridation under an ammonia atmosphere has been studied. For obtaining the effects of process parameters such as time and temperature on nitride formation, Ti-Al-B composite powder prepared by thermite ignition was used as a starting material in this work. The reaction products were examined via X-ray diffraction (XRD) and microanalysis using an energy dispersive system attached to a scanning electron microscope (SEM). The X-ray and SEM observations indicate that the nitride formation is confirmed at temperature above 1273 K within 2 hours under a NH3gas flow rate of 33 1/h. Although TiN-AlN-BN composite powders were obtained at 1723 K in 6 hours under a NH3gas flow rate of 33 1/h, a small amount of intermetallic compound such as AIB2and TiB2also remains in the product.",

keywords = "AlN, BN, Ti-Al-B-N composite ceramic powders, TiB, TiN, nitridation",

author = "{\"O}zdemir and \{{\c C}inar {\c S}ahin\}, F. and O. Y{\"u}cel",

year = "2001",

doi = "10.1515/HTMP.2001.20.5-6.429",

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TY - JOUR

T1 - Nitridation of Ti-B-AI-AI2O3Composite Powder

AU - Özdemir,

AU - Çinar Şahin, F.

AU - Yücel, O.

PY - 2001

Y1 - 2001

N2 - The preparation of Ti-Al-B-N composite ceramic powders from Ti-Al-B composites by nitridation under an ammonia atmosphere has been studied. For obtaining the effects of process parameters such as time and temperature on nitride formation, Ti-Al-B composite powder prepared by thermite ignition was used as a starting material in this work. The reaction products were examined via X-ray diffraction (XRD) and microanalysis using an energy dispersive system attached to a scanning electron microscope (SEM). The X-ray and SEM observations indicate that the nitride formation is confirmed at temperature above 1273 K within 2 hours under a NH3gas flow rate of 33 1/h. Although TiN-AlN-BN composite powders were obtained at 1723 K in 6 hours under a NH3gas flow rate of 33 1/h, a small amount of intermetallic compound such as AIB2and TiB2also remains in the product.

AB - The preparation of Ti-Al-B-N composite ceramic powders from Ti-Al-B composites by nitridation under an ammonia atmosphere has been studied. For obtaining the effects of process parameters such as time and temperature on nitride formation, Ti-Al-B composite powder prepared by thermite ignition was used as a starting material in this work. The reaction products were examined via X-ray diffraction (XRD) and microanalysis using an energy dispersive system attached to a scanning electron microscope (SEM). The X-ray and SEM observations indicate that the nitride formation is confirmed at temperature above 1273 K within 2 hours under a NH3gas flow rate of 33 1/h. Although TiN-AlN-BN composite powders were obtained at 1723 K in 6 hours under a NH3gas flow rate of 33 1/h, a small amount of intermetallic compound such as AIB2and TiB2also remains in the product.

KW - AlN

KW - BN

KW - Ti-Al-B-N composite ceramic powders

KW - TiB

KW - TiN

KW - nitridation

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DO - 10.1515/HTMP.2001.20.5-6.429

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