Abstract
To develop a high-rate diamond deposition process using combustion flame method, diamond deposition equipment with twin acetylene/oxygen welding torch was manufactured, and diamond deposition by using this equipment was carried out. 304 Stainless steel plates and molybdenum plates were used as substrates. The diamond deposition was conducted under the following conditions: oxygen flow rate: 1.25 SLM, acetylene/oxygen flow ratio: 1.15, and diamond deposition temperature: around 1473 K. Consequently, diamonds could be deposited even on the stainless steel substrate, and diamond deposition rate was promoted by using twin torch equipment. Besides, the diamond/molybdenum hybrid coating using diamonds deposited by twin torch equipment have the same wear-resistant property as that using diamonds by the single torch equipment. From these results, this technique was thought to have high potential for high-rate diamond deposition in combustion flame method.
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This article is an invited paper selected from presentations at the 3rd Asian Thermal Spray Conference (ATSC2008) and has been expanded from the original presentation. ATSC2008 was held at Nanyang Executive Centre, Singapore, November 6-7, 2008, and chaired by K.A. Khor.
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Ando, Y., Tobe, S. & Tahara, H. High-Rate Diamond Deposition by Combustion Flame Method Using Twin Acetylene/Oxygen Gas Welding Torch. J Therm Spray Tech 18, 483–489 (2009). https://doi.org/10.1007/s11666-009-9400-8
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DOI: https://doi.org/10.1007/s11666-009-9400-8