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Updated: Jun 6, 2026
Negative Additive Manufacturing of Complex Shaped Boron Carbides
Published on: September 18, 2018
Submicron-sized boron carbide particles encapsulated in turbostratic graphite prepared by laser fragmentation in
Yoshie Ishikawa1, Takeshi Sasaki, Naoto Koshizaki
1Nanoarchitectonics Research Center (NARC), National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
Abstract:
Submicron-sized B4C spherical particles were obtained by laser fragmentation of large B4C particles dispersed in ethyl acetate. The irradiated surface of large B4C raw particles was heated and melted by laser energy absorption. B4C droplets were then cooled down, and finally B4C spherical particles were obtained. Moreover, each B4C particle obtained was encapsulated in a graphitic layer that is useful for medical functionalization of particles. Thus, obtained B4C particles encapsulated in graphitic layer may have potential uses in boron neutron capture therapy.
