Multicarbide formation direct from concentrate

N. J. Welham

doi:10.1023/A:1006670603636

Multicarbide formation direct from concentrate

N. J. Welham^*

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

The ball milling of oxides with graphite was found to be a potentially viable method for producing hard metals such as carbides for cutting tools. In this study, tantalum-niobium concentrate was obtained from a commercial concentrator. Graphite powders were annealed then milled. For purposes of comparison, some samples were not milled. The products were analyzed by X-ray diffraction (XRD). Premilling reduced the temperature necessary for reduction from 1000°C to 700°C. Complete reduction to a multicarbide was attained within 1 h at 1000°C for milled powder, where the unmilled powder showed only a slight reaction. These results suggest that the formation of a multicarbide by ball milling is economical.

Original language	English
Pages (from-to)	141-143
Number of pages	3
Journal	Journal of Materials Science Letters
Volume	18
Issue number	2
DOIs	https://doi.org/10.1023/A:1006670603636
Publication status	Published - 1 Jan 1999

Access to Document

10.1023/A:1006670603636

Cite this

@article{8f2a1daf0e0347e99b50db46cf73909a,

title = "Multicarbide formation direct from concentrate",

abstract = "The ball milling of oxides with graphite was found to be a potentially viable method for producing hard metals such as carbides for cutting tools. In this study, tantalum-niobium concentrate was obtained from a commercial concentrator. Graphite powders were annealed then milled. For purposes of comparison, some samples were not milled. The products were analyzed by X-ray diffraction (XRD). Premilling reduced the temperature necessary for reduction from 1000°C to 700°C. Complete reduction to a multicarbide was attained within 1 h at 1000°C for milled powder, where the unmilled powder showed only a slight reaction. These results suggest that the formation of a multicarbide by ball milling is economical.",

author = "Welham, {N. J.}",

year = "1999",

month = jan,

day = "1",

doi = "10.1023/A:1006670603636",

language = "English",

volume = "18",

pages = "141--143",

journal = "Journal of Materials Science Letters",

issn = "0261-8028",

publisher = "Chapman & Hall",

number = "2",

}

TY - JOUR

T1 - Multicarbide formation direct from concentrate

AU - Welham, N. J.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - The ball milling of oxides with graphite was found to be a potentially viable method for producing hard metals such as carbides for cutting tools. In this study, tantalum-niobium concentrate was obtained from a commercial concentrator. Graphite powders were annealed then milled. For purposes of comparison, some samples were not milled. The products were analyzed by X-ray diffraction (XRD). Premilling reduced the temperature necessary for reduction from 1000°C to 700°C. Complete reduction to a multicarbide was attained within 1 h at 1000°C for milled powder, where the unmilled powder showed only a slight reaction. These results suggest that the formation of a multicarbide by ball milling is economical.

AB - The ball milling of oxides with graphite was found to be a potentially viable method for producing hard metals such as carbides for cutting tools. In this study, tantalum-niobium concentrate was obtained from a commercial concentrator. Graphite powders were annealed then milled. For purposes of comparison, some samples were not milled. The products were analyzed by X-ray diffraction (XRD). Premilling reduced the temperature necessary for reduction from 1000°C to 700°C. Complete reduction to a multicarbide was attained within 1 h at 1000°C for milled powder, where the unmilled powder showed only a slight reaction. These results suggest that the formation of a multicarbide by ball milling is economical.

UR - http://www.scopus.com/inward/record.url?scp=0032657007&partnerID=8YFLogxK

U2 - 10.1023/A:1006670603636

DO - 10.1023/A:1006670603636

M3 - Article

SN - 0261-8028

VL - 18

SP - 141

EP - 143

JO - Journal of Materials Science Letters

JF - Journal of Materials Science Letters

IS - 2

ER -

Multicarbide formation direct from concentrate

Abstract

Access to Document

Other files and links

Fingerprint

Cite this