Effect of Sintering Pressure on the Properties of PcBN Carbide Inserts

PcBN (polycrystalline cubic boron nitride) carbide insert were synthesized with cBN/Zr/Al as raw material under high temperature and pressure. The effects of synthesis pressure on the interfacial morphology, wear resistance, microhardness and flatness of PcBN carbide insert were investigated. The te...

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Bibliographic Details
Published inJournal of superhard materials Vol. 46; no. 4; pp. 267 - 274
Main Authors Yin, Xiangxiang, Mo, Peicheng
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.08.2024
Springer Nature B.V
Subjects
Abrasion resistance
Abrasion resistant alloys
Bonding strength
Chemistry
Chemistry and Materials Science
Cubic boron nitride
Flatness
High temperature
Inserts
Microhardness
Physical Chemistry
Pressure effects
Production
Properties
Raw materials
Structure
Substrates
Synthesis
Thickness
Wear resistance
Zirconium carbide
interfacial bonding
high pressure
polycrystalline cubic boron nitride
wear resistance
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Summary:PcBN (polycrystalline cubic boron nitride) carbide insert were synthesized with cBN/Zr/Al as raw material under high temperature and pressure. The effects of synthesis pressure on the interfacial morphology, wear resistance, microhardness and flatness of PcBN carbide insert were investigated. The test results show that with the increase of synthesis pressure, the composite interfacial bond is more dense and homogeneous, and the bonding strength between the cBN layer and the alloy substrate is higher. Additionally, the density, microhardness and abrasion resistance of the PcBN carbide insert were improved. Meanwhile, under the ultra-high pressure, the thickness deviation of the PcBN carbide insert gradually decreases, the thickness distribution gradually becomes uniform, and the flatness of the samples gradually becomes better.
ISSN:1063-4576
1934-9408
DOI:10.3103/S1063457624040129