Influence of diamond-etching conditions on the fabrication of diamond microneedles by a thermochemical reaction of Ni in an H2 atmosphere
Source abstract
Abstract
We examined the influence of diamond-etching conditions on microneedles fabricated by a thermochemical reaction between a Ni film with pinholes and a diamond (100) wafer in an H2 atmosphere. The diamond microneedles fabricated by varying the annealing temperatures and thickness of the Ni film coated on the diamond were characterized by scanning electron microscopy. Relatively uniform and long diamond microneedles, with diameters of about 1 µm and heights of about 20 µm, were obtained by annealing for 6 h at 850 °C. For Ni films thicker than 1 µm, microneedles with inverted conical shape were obtained, whereas those fabricated with thinner Ni films exhibited a conical shape.
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Research context
OpenAlex topics: Diamond and Carbon-based Materials Research · Adhesion, Friction, and Surface Interactions · Advanced Fiber Laser Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Adamant Namiki Precision Jewel Co., Ltd.
Tokyo Institute of Technology
References (25)
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