Mechanochemical synthesis of WC powders by mechanical alloying

M. L. Öveçoǧlu; B. Özkal

Mechanochemical synthesis of WC powders by mechanical alloying

M. L. Öveçoǧlu^*, B. Özkal

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Istanbul Technical University

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

A WC powder alloy was synthesized by mechanical alloying of elemental tungsten and graphite powders. Mechanical alloying runs were carried out in a heavy-duty attritor and subsequently in a Spex Mixer-Mill at room temperature. X-ray investigations conducted on the attritor-milled powders revealed only the presence of the W phase and the indication of carbon amorphization with milling time. When the attritor-milled powders were annealed at 1100°C, metastable and stable WC_x phases emerged in the microstructure. Progressive Spex milling of the powders attritor-milled for 30 h was carried out to follow the transformation of into the stable WC phase which was achieved between 20 and 30 h during Spex milling. Analytical transmission electron microscopy experiments on the Spex milled powders verified the presence of the WC powder particles.

Original language	English
Pages (from-to)	89-92
Number of pages	4
Journal	Key Engineering Materials
Volume	264-268
Issue number	I
Publication status	Published - 2004
Event	Proceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey Duration: 29 Jun 2003 → 3 Jul 2003

Keywords

Attritor-Milling
Mechanical Alloying
Mechanochemical Synthesis
Spex Milling
WC

Cite this

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title = "Mechanochemical synthesis of WC powders by mechanical alloying",

abstract = "A WC powder alloy was synthesized by mechanical alloying of elemental tungsten and graphite powders. Mechanical alloying runs were carried out in a heavy-duty attritor and subsequently in a Spex Mixer-Mill at room temperature. X-ray investigations conducted on the attritor-milled powders revealed only the presence of the W phase and the indication of carbon amorphization with milling time. When the attritor-milled powders were annealed at 1100°C, metastable and stable WCx phases emerged in the microstructure. Progressive Spex milling of the powders attritor-milled for 30 h was carried out to follow the transformation of into the stable WC phase which was achieved between 20 and 30 h during Spex milling. Analytical transmission electron microscopy experiments on the Spex milled powders verified the presence of the WC powder particles.",

keywords = "Attritor-Milling, Mechanical Alloying, Mechanochemical Synthesis, Spex Milling, WC",

author = "{\"O}ve{\c c}oǧlu, {M. L.} and B. {\"O}zkal",

year = "2004",

language = "English",

volume = "264-268",

pages = "89--92",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications Ltd",

number = "I",

note = "Proceedings of the 8th Conference and Exhibition of the European Ceramic Society ; Conference date: 29-06-2003 Through 03-07-2003",

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TY - JOUR

T1 - Mechanochemical synthesis of WC powders by mechanical alloying

AU - Öveçoǧlu, M. L.

AU - Özkal, B.

PY - 2004

Y1 - 2004

N2 - A WC powder alloy was synthesized by mechanical alloying of elemental tungsten and graphite powders. Mechanical alloying runs were carried out in a heavy-duty attritor and subsequently in a Spex Mixer-Mill at room temperature. X-ray investigations conducted on the attritor-milled powders revealed only the presence of the W phase and the indication of carbon amorphization with milling time. When the attritor-milled powders were annealed at 1100°C, metastable and stable WCx phases emerged in the microstructure. Progressive Spex milling of the powders attritor-milled for 30 h was carried out to follow the transformation of into the stable WC phase which was achieved between 20 and 30 h during Spex milling. Analytical transmission electron microscopy experiments on the Spex milled powders verified the presence of the WC powder particles.

AB - A WC powder alloy was synthesized by mechanical alloying of elemental tungsten and graphite powders. Mechanical alloying runs were carried out in a heavy-duty attritor and subsequently in a Spex Mixer-Mill at room temperature. X-ray investigations conducted on the attritor-milled powders revealed only the presence of the W phase and the indication of carbon amorphization with milling time. When the attritor-milled powders were annealed at 1100°C, metastable and stable WCx phases emerged in the microstructure. Progressive Spex milling of the powders attritor-milled for 30 h was carried out to follow the transformation of into the stable WC phase which was achieved between 20 and 30 h during Spex milling. Analytical transmission electron microscopy experiments on the Spex milled powders verified the presence of the WC powder particles.

KW - Attritor-Milling

KW - Mechanical Alloying

KW - Mechanochemical Synthesis

KW - Spex Milling

KW - WC

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M3 - Conference article

AN - SCOPUS:8744266176

SN - 1013-9826

VL - 264-268

SP - 89

EP - 92

JO - Key Engineering Materials

JF - Key Engineering Materials

IS - I

T2 - Proceedings of the 8th Conference and Exhibition of the European Ceramic Society

Y2 - 29 June 2003 through 3 July 2003

ER -

Mechanochemical synthesis of WC powders by mechanical alloying

Abstract

Keywords

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