CBN-metal/metal nitride composites

Investigation of the Usability of Cubic Boron Nitride Cutting Tools as an Alternative to Diamond Cutting Tools for the Aircraft Industry

“…While hexagonal boron nitride is used in manufacturing refractory materials, cubic boron nitride is used in manufacturing composite materials. cBN is the second hardest material after diamond, and possesses numerous excellent physical and chemical properties, high resistance to chemical attack, and mechanical properties [1][2][3]. Diamond causes graphitisation during studies conducted at high temperatures; ultimately reducing its performance.…”

Synthesis and Characterization of TiN‐coated Cubic Boron Nitride Powders

“…Cubic boron nitride (cBN) has high hardness, thermal stability, and chemical inertness . These properties make cBN an ideal cutting‐tool candidate in processing of the hard‐to‐machine materials, such as alloy steel, quenched steel and cast iron . Polycrystalline cubic boron nitride (PcBN) is prepared by sintering pure cBN under high‐temperature and high‐pressure conditions, usually containing ceramic or metal binders.…”

“…Polycrystalline cubic boron nitride (PcBN) is prepared by sintering pure cBN under high‐temperature and high‐pressure conditions, usually containing ceramic or metal binders. Metals of the IV–VI groups of the periodic table of elements are most frequently used as binding additives to produce cBN compact, such as titanium, chromium, tantalum, and their compounds …”

“…[1][2][3][4] These properties make cBN an ideal cutting-tool candidate in processing of the hard-to-machine materials, such as alloy steel, quenched steel and cast iron. 5,6 Polycrystalline cubic boron nitride (PcBN) is prepared by sintering pure cBN under high-temperature and high-pressure conditions, usually containing ceramic or metal binders. Metals of the IV-VI groups of the periodic table of elements are most frequently used as binding additives to produce cBN compact, such as titanium, chromium, tantalum, and their compounds.…”

Evaluation of CVD‐Deposited SiO2 as a Sintering Aid for Cubic Boron Nitride Consolidated with Alumina by Spark Plasma Sintering

“…However, it is difficult to sinter cBN because of its covalent nature and the phase transformation to hexagonal BN (hBN), which might generate cracks in the ceramics because of volume changes. Thus, cBN and cBN‐based composites are usually consolidated at ultrahigh pressures (more than 5 GPa) with various sintering aids …”