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Patent Agency Ranking
公开(公告)号：KR1019930006337B1
公开(公告)日：1993-07-14
申请号：KR1019930008241
申请日：1993-05-13
Applicant: 한국과학기술연구원
CPC classification number: H01C7/043 , C04B35/016
Abstract: The metallic oxide based NTC (negative temperature coefficient) thermistor materials are composed of 21.90-53.68 wt.% manganese carbonate, 7.15-13.56 wt.% nickel oxide, 0-50.76 wt.% copper oxide, 0-35.05 wt.% zinc oxide, 0-30.61 wt.% cobalt oxide, 0- 38.26 wt.% iron oxide and 0-4.17 wt.% titanium oxide (titania). The NTC thermistor is prepared by (a) calcinating the mixed and pulverized material at 750-850 deg.C, (b) adding the small amount of the binder such as PVA aqueous solution and pressure molding, and (c) sintering the molded body on the alumina substrate at 600- 1200 deg.C for 2 hrs.
Abstract translation: 基于金属氧化物的NTC（负温度系数）热敏电阻材料由21.90-53.68重量％的碳酸锰，7.15-13.56重量％的氧化镍，0-50.76重量％的氧化铜，0-35.05重量％的氧化锌 ，0-30.61重量％的氧化钴，0-38.26重量％的氧化铁和0-4.17重量％的氧化钛（二氧化钛）。 NTC热敏电阻是通过（a）在750-850℃下煅烧混合粉碎的材料制备的，（b）加入少量粘合剂如PVA水溶液和加压成型，和（c）烧结成型体 在氧化铝基板上在600-1200℃下放置2小时。
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公开(公告)号：KR1019930005249B1
公开(公告)日：1993-06-17
申请号：KR1019900012585
申请日：1990-08-16
Applicant: 한국과학기술연구원
IPC: C04B35/36
CPC classification number: H01C7/043 , C04B35/016
Abstract: The metallic oxide based materials for thermistors are composed of 27.86-41.85 wt.% manganese carbonate, 6.17-10.97 wt.% nickel oxide, 0-47.02 wt.% zinc oxide, 0-8.97 wt.% cobalt oxide, 4.13-51.14 wt.% iron oxide and 0.23-3.09 wt.% titanium oxide (titania). The thermistor material is prepared by milling the oxides with zirconia ball and distilled water as media and sintering the metallic oxide mixture at 1000-12000 deg.C through eutectic reactions.
Abstract translation: 用于热敏电阻的金属氧化物基材料由27.86-41.85重量％的碳酸锰，6.17-10.97重量％的氧化镍，0-47.02重量％的氧化锌，0-8.97重量％的氧化钴，4.13-51.14重量％ 的氧化铁和0.23-3.09重量％的氧化钛（二氧化钛）。 热敏电阻材料通过用氧化锆球和蒸馏水作为介质研磨氧化物并通过共晶反应在1000-12000℃烧结金属氧化物混合物来制备。
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