TY - JOUR
T1 - Sintering of polycrystalline boron nitride composites for in-situ synchrotron high pressure research
AU - Qian, J.
AU - Mukhopadhyay, D.
AU - Nguyen, K. D.
AU - Bertagnolli, K. B.
AU - Ma, Y.
N1 - Funding Information:
The authors would like to thank Bryce Jensen for preparing all the samples and Mirtha Diaz for the SEM and EDS analysis. This work is partially supported by the Defense Advanced Research Planning Agency (program manager, Judah Goldwasser and Grant No. W31P4Q-13-1-0010 ).
Publisher Copyright:
© 2014 Elsevier Ltd.
PY - 2015
Y1 - 2015
N2 - Polycrystalline cubic boron nitride (PcBN) composites were sintered around 6 GPa/1200 °C in a cubic multi anvil press: aluminium in the starting mixture reacts with cubic boron nitride (cBN) and forms aluminium boride (AlB2) and nitride (AlN) bonding among cBN grains during high pressure high temperature (HPHT) sintering. X-ray diffraction (XRD), Scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), and Raman spectroscopy were utilized to analyse different phases,micro-structure,morphology, and compositions of the composites material. The dense structure of superhard cBN grains bonded together with light AlB2/AlN offers superior hardness, high strength, and X-ray transparency; PcBN anvils (12 mm height × 12 mm diameter × 5 mm culet) were built for rotational anvil cell for in-situ synchrotron high pressure experiments on Zirconium, and these PcBN anvils survived up to 32 GPa after initial tests.
AB - Polycrystalline cubic boron nitride (PcBN) composites were sintered around 6 GPa/1200 °C in a cubic multi anvil press: aluminium in the starting mixture reacts with cubic boron nitride (cBN) and forms aluminium boride (AlB2) and nitride (AlN) bonding among cBN grains during high pressure high temperature (HPHT) sintering. X-ray diffraction (XRD), Scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), and Raman spectroscopy were utilized to analyse different phases,micro-structure,morphology, and compositions of the composites material. The dense structure of superhard cBN grains bonded together with light AlB2/AlN offers superior hardness, high strength, and X-ray transparency; PcBN anvils (12 mm height × 12 mm diameter × 5 mm culet) were built for rotational anvil cell for in-situ synchrotron high pressure experiments on Zirconium, and these PcBN anvils survived up to 32 GPa after initial tests.
KW - Cubic multi anvil press
KW - High pressure high temperature
KW - Polycrystalline cubic boron nitride
KW - Superhard materials
UR - http://www.scopus.com/inward/record.url?scp=84933045120&partnerID=8YFLogxK
U2 - 10.1016/j.ijrmhm.2014.10.001
DO - 10.1016/j.ijrmhm.2014.10.001
M3 - Article
AN - SCOPUS:84933045120
VL - 49
SP - 288
EP - 291
JO - International Journal of Refractory Metals and Hard Materials
JF - International Journal of Refractory Metals and Hard Materials
SN - 0263-4368
IS - 1
ER -