公开(公告)号：US20160284453A1

公开(公告)日：2016-09-29

申请号：US15032711

申请日：2014-10-30

Applicant: TODA KOGYO CORP.

Inventor： Yoji OKANO ,  Tomohiro DOTE ,  Makoto SADAI ,  Shingo HONDA ,  Katsumi NAKAI ,  Yasuhiko FUJII

IPC: H01F1/10 ,  H01Q1/24 ,  H01Q1/38

CPC classification number: H01F1/10 ,  C04B35/26 ,  C04B35/62625 ,  C04B35/62675 ,  C04B35/638 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/6025 ,  C04B2235/72 ,  C04B2235/726 ,  C04B2235/77 ,  H01F1/344 ,  H01Q1/243 ,  H01Q1/38

Abstract: An object or technical task of the present invention is to provide a ferrite sintered sheet having a dense ferrite microfine structure which has a large μ′ value, a small μ″ value, and a small temperature-dependent change of the μ′ value thereof. The present invention relates to a ferrite ceramics having a composition comprising 47.5 to 49.8 mol % of Fe2O3, 13.5 to 19.5 mol % of NiO, 21 to 27 mol % of ZnO, 7.5 to 12.5 mol % of CuO and 0.2 to 0.8 mol % of CoO, all of the molar amounts being calculated in terms of the respective oxides, the ferrite ceramics further comprising 0.2 to 1.4% by weight of SnO2 and 0.005 to 0.03% by weight of S and having a density of 5.05 to 5.30 g/cm3; and a ferrite sintered sheet comprising the ferrite sintered plate on a surface of which a groove or grooves are formed, and an adhesive layer and/or a protective layer formed on the ferrite sintered plate.

Abstract translation: 本发明的目的或技术任务是提供一种铁氧体烧结片，其具有致密的铁氧体微结构，其具有大的μ'值，小的μ“值和小的μ'值的小的温度变化。 本发明涉及铁氧体陶瓷，其组成为：Fe2O3为47.5〜49.8摩尔％，NiO为13.5〜19.5摩尔％，ZnO为21〜27摩尔％，CuO为7.5〜12.5摩尔％，CuO为0.2〜0.8摩尔％ CoO，所有的摩尔量均以各自的氧化物计算，铁素体陶瓷还包含0.2〜1.4重量％的SnO 2和0.005〜0.03重量％的S，密度为5.05〜5.30g / cm 3; 以及铁氧体烧结片，在其表面形成有槽或槽的铁氧体烧结板和形成在铁氧体烧结板上的粘合层和/或保护层。