公开(公告)号：US10000420B2

公开(公告)日：2018-06-19

申请号：US15522007

申请日：2015-11-13

申请人： TaeguTec, Ltd.

发明人： Sung Su Chun ,  Dae Yeop Lee ,  Geun Ho Park ,  Chang Hoon Hong

IPC分类号： C04B35/597 ,  B23B27/14

CPC分类号： C04B35/597 ,  B23B27/148 ,  B23B2222/64 ,  B23B2226/18 ,  C01B21/0826 ,  C04B35/62655 ,  C04B35/645 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/767 ,  C04B2235/85 ,  C04B2235/96

摘要： A ceramic material includes of β-sialon (Si(6-z)AlzOzN(8-z)), polytype 15R, an intergranular phase, and yttrium. The polytype 15R includes twin grains.

公开(公告)号：US10221102B2

公开(公告)日：2019-03-05

申请号：US15567262

申请日：2016-04-22

申请人： TaeguTec, Ltd.

发明人： Sung Su Chun ,  Dae Yeop Lee ,  Geun Ho Park ,  Chang Hoon Hong

IPC分类号： C04B35/599 ,  B23C5/00 ,  C04B35/597 ,  C04B35/626 ,  C04B35/645 ,  C09K5/14

摘要： A SiAlON composite includes a SiAlON phase including α-SiAlON phase, β-SiAlON phase and grain boundary phase. The SiAlON composite is prepared from a starting powder mixture including a silicon nitride powder and at least one powder providing aluminum, oxygen, nitrogen, yttrium (Y) and erbium (Er) to the SiAlON composite. The SiAlON composite contains the SiAlON phase of at least 90 vol %, z-value of the β-SiAlON phase ranges between 0.27 and 0.36 and thermal diffusivity of the SiAlON composite is equal to or greater than 2.4 (mm2/sec) and equal to or less than 5.2 (mm2/sec).