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.
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 -