Published May 1, 2010 | Version v1
Journal article Metadata-only

Properties of nanostructured tungsten carbide and their rapid consolidation by pulsed current activated sintering

Creators

  • 1. Division of Advanced Materials Engineering and the Research Center of Advanced Materials Development, Engineering College, Chonbuk National University, Jeoniu 561-756 (Korea, Republic of)
  • 2. Advanced Functional Materials Research Center, Korea Institute of Science and Technology, PO Box 131, Cheongryang, Seoul 130-650 (Korea, Republic of)

Description

Highly dense nanostructured WC with a relative density of up to 99% was obtained within 2 min by pulsed current activated sintering (PCAS) under a pressure of 80 MPa. The relative density of WC increased to 99% and the average grain size of WC decreased to 54 nm with milling time. The hardness and fracture toughness of the dense WC produced by PCAS were 2620, 2489 and 2068 kg mm-2 and 8.5, 8.8 and 9.8 MPa m1/2 with milling times of 10, 4 and 1 h, respectively.

Availability note (English)

Available from http://dx.doi.org/10.1088/0031-8949/2010/T139/014043

Additional details

Identifiers

DOI
10.1088/0031-8949/2010/T139/014043;

Publishing Information

Journal Title
Physica Scripta (Online)
Journal Volume
2010
Journal Issue
T139
Journal Page Range
[4 p.]
ISSN
1402-4896

Conference

Title
3. international symposium on functional materials 2009; AFM 2009: Preconference on advances in functional materials 2009
Acronym
ISFM 2009
Dates
15-18 Jun 2009; 8-11 Jun 2009
Place
Jinju (Korea, Republic of); Jiu Zhai Gou (China)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42084290
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
DENSITY; FRACTURE PROPERTIES; GRAIN SIZE; HARDNESS; MAXIMUM PERMISSIBLE ACTIVITY; MILLING; NANOSTRUCTURES; POLAR-CAP ABSORPTION; PRESSURE RANGE MEGA PA; SINTERING; TUNGSTEN CARBIDES
Descriptors DEC
ABSORPTION; CARBIDES; CARBON COMPOUNDS; FABRICATION; MACHINING; MECHANICAL PROPERTIES; MICROSTRUCTURE; PHYSICAL PROPERTIES; PRESSURE RANGE; REFRACTORY METAL COMPOUNDS; SAFETY STANDARDS; SIZE; SORPTION; STANDARDS; TRANSITION ELEMENT COMPOUNDS; TUNGSTEN COMPOUNDS