Rapid consolidation of hydroxyapatite using intense millimeter-wave radiation. (2020)

• Record Type: Journal Article
• Authors: Egorov, S.V.; Eremeev, A.G.; Kholoptsev, V.V.; Plotnikov, I.V.; Rybakov, K.I.; Sorokin, A.A.
• Is Part Of: Materials today. Volume 25:Part 3(2020)
• Page Start: 349
• Page End: 351
• Publication Date: 2020
• Subjects: Microwave sintering -- Millimeter waves -- Hydroxyapatite -- Gyrotron -- Additive manufacturing; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.12.081
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Hydroxyapatite powder compacts have been sintered to a relative density of about 95% using rapid 24 GHz microwave heating at rates 10–100 °C/min to 1300 °C with zero hold time. An optical system based on an infrared camera has been developed to measure shrinkage and temperature distributions over the surface of the samples. Ultra-rapid localized consolidation of hydroxyapatite powder, with application prospects in additive manufacturing, has been achieved using heating by a focused beam of 263 GHz millimeter-wave radiation.