Pressureless sintering of chromium diboride using spark plasma sintering facility

K. Sairam; J. K. Sonber; Murthy Tammana; A. K. Sahu; R. D. Bedse; J. K. Chakravartty

doi:10.1016/j.ijrmhm.2016.05.002

Pressureless sintering of chromium diboride using spark plasma sintering facility

K. Sairam^*, J. K. Sonber, Murthy Tammana, A. K. Sahu, R. D. Bedse, J. K. Chakravartty

^*Corresponding author for this work

Metallurgy and Materials

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

8 Citations (Scopus)

Abstract

Sinterability of monolithic CrB₂ was investigated under pressureless sintering condition using spark plasma sintering facility (SPS). Monolithic chromium diboride (CrB₂) was sintered in a modified die setup instead of traditional/conventional plunger and die assembly. This kind of assembly creates pressureless sintering conditions in spark plasma sintering unit. The main objective of this modified setup is to couple the combined aspect of conventional pressureless sintering with fast heating. Densification experiments using CrB₂ were conducted at temperatures in the range of 1600 °C to 2000 °C with different dwelling period (1-30 min) under no load condition. The effect of multi-step sintering treatment on the densification behaviour of CrB₂ was also investigated. The density and the resulted microstructures of the sintered samples are presented and discussed in this paper.

Original language	English
Pages (from-to)	165-171
Number of pages	7
Journal	International Journal of Refractory Metals and Hard Materials
Volume	58
Early online date	10 May 2016
DOIs	https://doi.org/10.1016/j.ijrmhm.2016.05.002
Publication status	Published - 1 Aug 2016

Keywords

Boride
CrB
Grain coarsening
Microstructure
Pressureless sintering
Spark plasma sintering

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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@article{4a2c6a21d3594a69a8872c423e866914,

title = "Pressureless sintering of chromium diboride using spark plasma sintering facility",

abstract = "Sinterability of monolithic CrB2 was investigated under pressureless sintering condition using spark plasma sintering facility (SPS). Monolithic chromium diboride (CrB2) was sintered in a modified die setup instead of traditional/conventional plunger and die assembly. This kind of assembly creates pressureless sintering conditions in spark plasma sintering unit. The main objective of this modified setup is to couple the combined aspect of conventional pressureless sintering with fast heating. Densification experiments using CrB2 were conducted at temperatures in the range of 1600 °C to 2000 °C with different dwelling period (1-30 min) under no load condition. The effect of multi-step sintering treatment on the densification behaviour of CrB2 was also investigated. The density and the resulted microstructures of the sintered samples are presented and discussed in this paper.",

keywords = "Boride, CrB, Grain coarsening, Microstructure, Pressureless sintering, Spark plasma sintering",

author = "K. Sairam and Sonber, {J. K.} and Murthy Tammana and Sahu, {A. K.} and Bedse, {R. D.} and Chakravartty, {J. K.}",

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T1 - Pressureless sintering of chromium diboride using spark plasma sintering facility

AU - Sairam, K.

AU - Sonber, J. K.

AU - Tammana, Murthy

AU - Sahu, A. K.

AU - Bedse, R. D.

AU - Chakravartty, J. K.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - Sinterability of monolithic CrB2 was investigated under pressureless sintering condition using spark plasma sintering facility (SPS). Monolithic chromium diboride (CrB2) was sintered in a modified die setup instead of traditional/conventional plunger and die assembly. This kind of assembly creates pressureless sintering conditions in spark plasma sintering unit. The main objective of this modified setup is to couple the combined aspect of conventional pressureless sintering with fast heating. Densification experiments using CrB2 were conducted at temperatures in the range of 1600 °C to 2000 °C with different dwelling period (1-30 min) under no load condition. The effect of multi-step sintering treatment on the densification behaviour of CrB2 was also investigated. The density and the resulted microstructures of the sintered samples are presented and discussed in this paper.

AB - Sinterability of monolithic CrB2 was investigated under pressureless sintering condition using spark plasma sintering facility (SPS). Monolithic chromium diboride (CrB2) was sintered in a modified die setup instead of traditional/conventional plunger and die assembly. This kind of assembly creates pressureless sintering conditions in spark plasma sintering unit. The main objective of this modified setup is to couple the combined aspect of conventional pressureless sintering with fast heating. Densification experiments using CrB2 were conducted at temperatures in the range of 1600 °C to 2000 °C with different dwelling period (1-30 min) under no load condition. The effect of multi-step sintering treatment on the densification behaviour of CrB2 was also investigated. The density and the resulted microstructures of the sintered samples are presented and discussed in this paper.

KW - Boride

KW - CrB

KW - Grain coarsening

KW - Microstructure

KW - Pressureless sintering

KW - Spark plasma sintering

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U2 - 10.1016/j.ijrmhm.2016.05.002

DO - 10.1016/j.ijrmhm.2016.05.002

M3 - Article

AN - SCOPUS:84969592985

SN - 0263-4368

VL - 58

SP - 165

EP - 171

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

ER -

Pressureless sintering of chromium diboride using spark plasma sintering facility

Abstract

Keywords

ASJC Scopus subject areas

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