Scratching of Diamond Substrate Using Fixed Ultra-Hard Abrasive Grain Tool

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Authors: Hiroyuki Mizuma, Masanobu Nakatsu, Tatsuya Miyota, Kota NAGAO, Ryota NAMIKI, Seiji MIZUNUMA, Mamoru TAKAHASHI, Yasuyuki Miyano, Shinichi ITO, Kenji MURATA, Osamu KAMIYA
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Abstract

Scratching tests of a diamond substrate were performed using a tool fixed with four types of grains potentially harder than diamond. Materials reported by other researchers to be harder than diamonds often contain combinations of carbon, boron, and nitrogen. From the viewpoint of manufacturing, fullerene, wurtzite (hexagonal lattice boron nitride), polycrystalline diamond, and flame-synthesized diamond were selected in this study. After creating and testing saw wires and wheel saws, flame combustion synthetic diamond was determined to be the most promising. This is because only scratches from flame combustionsynthesized diamond initiate cleavage fracture.

Fields of Study & Subjects

Advanced Surface Polishing Techniques Advanced machining processes and optimization Diamond and Carbon-based Materials Research

Publication details

Journal / source
International Journal of the Society of Materials Engineering for Resources
Volume
27
Issue
1
Pages
n/a–n/a
Publication date
1 January 2026
Language
EN