Fabrication of Deep-Sub-Millimeter-Thick Compacts Using Spark Plasma Sintering
Nd-Fe-B type powder was sintered using spark plasma sintering method. Fabricated compact sintered at the temperature of 700 °C, is found to be a composite magnet with Nd-Fe-Co-B and α-Fe. The compact sintered at 700 °C shows slightly low coercivity and large remanent magnetization comparing to the compact sintered at 600 °C due to the formation of α-Fe phase, resulting in the large maximum energy product. Maximum energy product tends to decrease with decreasing thickness of sintered compacts below 0.5 mm in thickness.
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
T. Tanaka et al., "Fabrication of Deep-Sub-Millimeter-Thick Compacts Using Spark Plasma Sintering", Materials Science Forum, Vols. 534-536, pp. 521-524, 2007