Comparison of the effectiveness of rare-earth sintering additives on the high-temperature stability of α-sialon ceramics

H. Mandal; N. Camuscu; D. P. Thompson

doi:10.1007/BF01151503

Comparison of the effectiveness of rare-earth sintering additives on the high-temperature stability of α-sialon ceramics

H. Mandal^*, N. Camuscu, D. P. Thompson

^*Corresponding author for this work

Newcastle University

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

α-sialon starting compositions with m=1 and n=1.7 have been densified by either hot-pressing or pressureless sintering using Y₂O₃ and Ln₂O₃ additions where Ln is neodymium, samarium, dysprosium or ytterbium. The resulting materials have been heat treated at 1450°C to crystallize the grain-boundary liquid into crystalline oxynitride phases. The effect of sintering additive on the design of final properties has been studied and Dy₂O₃ was found to be the best sintering additive to obtain desirable properties for α-sialon and also α-β sialon materials.

Original language	English
Pages (from-to)	5901-5909
Number of pages	9
Journal	Journal of Materials Science
Volume	30
Issue number	23
DOIs	https://doi.org/10.1007/BF01151503
Publication status	Published - Dec 1995
Externally published	Yes

Access to Document

10.1007/BF01151503

Cite this

@article{061a57a3d67a4dfd960d7caa97e8daa4,

title = "Comparison of the effectiveness of rare-earth sintering additives on the high-temperature stability of α-sialon ceramics",

abstract = "α-sialon starting compositions with m=1 and n=1.7 have been densified by either hot-pressing or pressureless sintering using Y2O3 and Ln2O3 additions where Ln is neodymium, samarium, dysprosium or ytterbium. The resulting materials have been heat treated at 1450°C to crystallize the grain-boundary liquid into crystalline oxynitride phases. The effect of sintering additive on the design of final properties has been studied and Dy2O3 was found to be the best sintering additive to obtain desirable properties for α-sialon and also α-β sialon materials.",

author = "H. Mandal and N. Camuscu and Thompson, {D. P.}",

year = "1995",

month = dec,

doi = "10.1007/BF01151503",

language = "English",

volume = "30",

pages = "5901--5909",

journal = "Journal of Materials Science",

issn = "0022-2461",

publisher = "Springer",

number = "23",

}

TY - JOUR

T1 - Comparison of the effectiveness of rare-earth sintering additives on the high-temperature stability of α-sialon ceramics

AU - Mandal, H.

AU - Camuscu, N.

AU - Thompson, D. P.

PY - 1995/12

Y1 - 1995/12

N2 - α-sialon starting compositions with m=1 and n=1.7 have been densified by either hot-pressing or pressureless sintering using Y2O3 and Ln2O3 additions where Ln is neodymium, samarium, dysprosium or ytterbium. The resulting materials have been heat treated at 1450°C to crystallize the grain-boundary liquid into crystalline oxynitride phases. The effect of sintering additive on the design of final properties has been studied and Dy2O3 was found to be the best sintering additive to obtain desirable properties for α-sialon and also α-β sialon materials.

AB - α-sialon starting compositions with m=1 and n=1.7 have been densified by either hot-pressing or pressureless sintering using Y2O3 and Ln2O3 additions where Ln is neodymium, samarium, dysprosium or ytterbium. The resulting materials have been heat treated at 1450°C to crystallize the grain-boundary liquid into crystalline oxynitride phases. The effect of sintering additive on the design of final properties has been studied and Dy2O3 was found to be the best sintering additive to obtain desirable properties for α-sialon and also α-β sialon materials.

UR - http://www.scopus.com/inward/record.url?scp=0029482334&partnerID=8YFLogxK

U2 - 10.1007/BF01151503

DO - 10.1007/BF01151503

M3 - Article

AN - SCOPUS:0029482334

SN - 0022-2461

VL - 30

SP - 5901

EP - 5909

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 23

ER -

Comparison of the effectiveness of rare-earth sintering additives on the high-temperature stability of α-sialon ceramics

Abstract

Access to Document

Other files and links

Fingerprint

Cite this