公开(公告)号：US08426329B2

公开(公告)日：2013-04-23

申请号：US12917820

申请日：2010-11-02

申请人： Toshiyuki Watanabe ,  Masafumi Matsushita ,  Toshitaka Sakurai ,  Kazuya Sato ,  Yoko Matsushita ,  Takayoshi Misaki ,  Setsuko Shindo ,  Ayumi Shindo ,  Yumiko Kubota ,  Akiko Matsushita ,  Kunio Saito ,  Takumi Shitara ,  Futoshi Yanagino ,  Takashi Yoshida ,  Takashi Mizushima ,  Osamu Matsuzono ,  Kazuaki Sato ,  Kouki Shimizu

发明人： Toshiyuki Watanabe ,  Masafumi Matsushita ,  Toshitaka Sakurai ,  Kazuya Sato ,  Yoko Matsushita ,  Takayoshi Misaki ,  Setsuko Shindo ,  Ayumi Shindo ,  Yumiko Kubota ,  Akiko Matsushita ,  Kunio Saito ,  Takumi Shitara ,  Futoshi Yanagino ,  Takashi Yoshida ,  Takashi Mizushima ,  Osamu Matsuzono ,  Kazuaki Sato ,  Kouki Shimizu

IPC分类号： C04B35/599

CPC分类号： C04B35/597 ,  C04B35/6263 ,  C04B35/62655 ,  C04B35/6316 ,  C04B2235/3418 ,  C04B2235/421 ,  C04B2235/5445 ,  C04B2235/606 ,  C04B2235/658 ,  C04B2235/76 ,  C04B2235/767 ,  C04B2235/81 ,  C04B2235/9623

摘要： A duplex eutectic silicon alloy including 30-70 weight % silicon, 10-45 weight % nitrogen, 1-40 weight % aluminum, and 1-40 weight % oxygen has a eutectic structure comprising a β′-sialon phase and an ο′-sialon phase. The alloy is produced by controlling cooling at a rate of 50° C. or less per minute in combustion synthesis. A ductile sintered product capable of replacing steel in various applications can be produced by placing a compact composed of a powder of the alloy in a sintering furnace which can supply a heat quantity at least ten times the heat capacity of the compact; and sintering the compact at a pressure at least as great as atmospheric pressure, within a nitrogen atmosphere in which the silicon gas mole fraction is 10% or more, and at a temperature within the range from 1400° C. to 1700° C.

摘要翻译： 包含30-70重量％硅，10-45重量％氮，1-40重量％铝和1-40重量％氧气的双相共晶硅合金具有包含β'-赛隆相和二甲基亚砜的共晶结构， 赛隆相 通过在燃烧合成中以每分钟50℃或更低的速率控制冷却来生产合金。 能够在各种应用中替代钢的延性烧结体可以通过将由合金粉末组成的压块放置在烧结炉中来制造，所述烧结炉能够提供至少十倍于压坯的热容量的热量; 在至少与大气压相同的压力下，在硅气体摩尔分数为10％以上的氮气气氛中，在1400℃〜1700℃的温度范围内烧结成形体。