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公开(公告)号：KR1020050028177A
公开(公告)日：2005-03-22
申请号：KR1020030064557
申请日：2003-09-17
Applicant: 재단법인서울대학교산학협력재단
IPC: C04B35/447
CPC classification number: C04B35/447 , B32B18/00 , C04B35/6261 , C04B35/62625 , C04B35/62695 , C04B35/6303 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3262 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3298 , C04B2235/3409 , C04B2235/656 , C04B2235/77 , C04B2235/94 , C04B2235/9615
Abstract: A phosphate dielectric ceramic composition for dielectric substrates is provided, which has low dielectric constant, low dielectric loss and simultaneous sintering of ceramic and electrode in the high frequency by adding additives to the dielectric composition comprising P2O5 and divalent metal oxides. The high frequency dielectric ceramic composition is expressed by the formula of (1-x)(A'1-yA"y)O-xP2O5 (0
Abstract translation: 提供了一种用于电介质基片的磷酸盐介电陶瓷组合物，其通过向包含P 2 O 5和二价金属氧化物的电介质组合物中添加添加剂，具有低介电常数，低介电损耗以及高频陶瓷和电极的同时烧结。 高频电介质陶瓷组合物由（1-x）（A'1-yA“y）O-xP2O5（0
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公开(公告)号：KR1020080076501A
公开(公告)日：2008-08-20
申请号：KR1020070016513
申请日：2007-02-16
Applicant: 재단법인서울대학교산학협력재단
CPC classification number: A61L27/46 , A61L27/04 , A61L27/10 , A61L27/12 , A61L27/40 , A61L27/42 , A61L27/56
Abstract: An artificial bone filling agent using calcium pyrophosphate compound and a manufacturing method for the same are provided to obtain an artificial bone filling agent having a high sintering density. A manufacturing method of an artificial bone filling agent using calcium pyrophosphate compound includes the steps of: mixing at least one kind of compound selected from a group consisting of a calcium phosphate, a magnesium compound, a zirconium compound and a strontium oxide and a silicon compound; performing heat treatment of the mixture; pressurizing and molding the mixture for molding the mixture as a porous material; and sintering the molded molding material at more than 1,120deg.C. The heat treatment is performed at 900 to 1,100deg.C.
Abstract translation: 提供了使用焦磷酸钙化合物的人造骨填充剂及其制造方法，以获得具有高烧结密度的人造骨填充剂。 使用焦磷酸钙化合物的人造骨填充剂的制造方法包括以下步骤：将选自磷酸钙，镁化合物，锆化合物和氧化锶中的至少一种化合物与硅化合物 ; 进行混合物的热处理; 对混合物进行加压和模塑以将混合物成型为多孔材料; 并将模制成型材料烧结在1120℃以上。 热处理在900〜1100℃下进行。
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Patent Agency Ranking
公开(公告)号：KR100593262B1
公开(公告)日：2006-06-26
申请号：KR1020030060010
申请日：2003-08-28
Applicant: 재단법인서울대학교산학협력재단
IPC: C01B25/32
Abstract: 본 발명은 아파타이트 제조 방법에 관한 것으로, 보다 상세하게는 다양한 형상, 크기 및 기공율을 갖는 아파타이트 제조 방법에 관한 것이다. 본 발명은 칼슘염과 인산염이 함유된 혼합 수용액을 숙성하여 아파타이트를 제조하는 방법을 제공한다. 본 발명의 숙성 단계는 가스의 공급과 동시에 수행될 수 있으며, 공급되는 가스는 아파타이트 입자 형상, 입자 크기 및 비표면적에 영향을 미친다. 본 발명에 따르면, 다양한 형상 및 크기를 갖는 아파타이트 입자 제조의 제조가 가능하다.
아파타이트, 중간 반응물, 허니콤구조의 다공성 판상, 침상, 판상, 가스-
公开(公告)号：KR1020090077650A
公开(公告)日：2009-07-15
申请号：KR1020080069723
申请日：2008-07-17
Applicant: 재단법인서울대학교산학협력재단
CPC classification number: C03C10/0027 , C03C1/026 , C03C3/064 , C03C4/0007 , C03C10/0045
Abstract: A bioactive glass composition and a method for manufacturing crystallized glass using the same are provided to properly control bio-activation, flexural strength, glass transition temperature and/or a coefficient of thermal expansion by controlling the kinds and amount of additives. A method for manufacturing crystallized glass using a bioactive glass composition comprises: a first step of mixing calcium oxide(CaO), silica(SiO2), phosphorus pentoxide(P2O5), magnesium oxide(MgO) and calcium fluoride(CaF2) with one oxide selected from the group consisting of strontium oxide(SrO), boron oxide(B2O3), sodium oxide(Na2O), kalium oxide(K2O), zirconia(ZrO2), alumina(Al2O3) and lithium oxide(Li2O) as an additive(S10); a second step of heating the mixture and cooling off them to form a glass precursor(S20); a third step of pulverizing the glass precursor to obtain glass powder(S30); a fourth step of granulating the glass powder(S40); and a fifth step of molding the glass powder and sintering it to obtain crystallized glass(S50).
Abstract translation: 提供生物活性玻璃组合物和使用其制造结晶玻璃的方法，以通过控制添加剂的种类和量来适当地控制生物活化，弯曲强度，玻璃化转变温度和/或热膨胀系数。 使用生物活性玻璃组合物制造结晶玻璃的方法包括：将氧化钙（CaO），二氧化硅（SiO 2），五氧化二磷（P 2 O 5），氧化镁（MgO）和氟化钙（CaF 2）与一种选择的氧化物混合的第一步骤 由氧化锶（SrO），氧化硼（B 2 O 3），氧化钠（Na 2 O），氧化钾（K 2 O），氧化锆（ZrO 2），氧化铝（Al 2 O 3），氧化锂（Li 2 O） ; 第二步骤，加热混合物并将其冷却以形成玻璃前体（S20）; 粉碎玻璃前体以获得玻璃粉末的第三步骤（S30）; 粉碎玻璃粉末的第四步骤（S40）。 以及将玻璃粉末成型并烧结以得到结晶化玻璃的第五工序（S50）。
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公开(公告)号：KR100902541B1
公开(公告)日：2009-06-15
申请号：KR1020070016513
申请日：2007-02-16
Applicant: 재단법인서울대학교산학협력재단
Abstract: 본 발명은 일인산칼슘화합물을 이용한 인공 골 충진재 및 그 제조 방법에 관한 것으로, 지르코늄 화합물, 스트론튬 화합물 및 실리콘 화합물로 이루어진 그룹에서 선택된 최소한 1종 이상의 화합물과 마그네슘 화합물 및 일인산칼슘화합물을 혼합한 후 열처리, 성형 및 소결하는 인공 골 충진재의 제조 방법을 제공함으로써, 고밀도의 일인산칼슘계 인공 골 충진재를 제공할 수 있는 발명이다.
인공 골 충진제, 일인산칼슘, 마그네슘, 스트론튬, 지르코늄, 실리콘, 소결, 상전이-
公开(公告)号：KR100557853B1
公开(公告)日：2006-03-10
申请号：KR1020030064557
申请日：2003-09-17
Applicant: 재단법인서울대학교산학협력재단
IPC: C04B35/447
CPC classification number: C04B35/447 , B32B18/00 , C04B35/6261 , C04B35/62625 , C04B35/62695 , C04B35/6303 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3262 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3298 , C04B2235/3409 , C04B2235/656 , C04B2235/77 , C04B2235/94 , C04B2235/9615
Abstract: 본 발명은 유전율이 낮고 마이크로파, 밀리미터파 등의 고주파 대역에서 유전손실이 낮은 유전체 기판용 인산염계 유전체 세라믹 조성물 및 이를 이용한 유전체 기판의 제조 방법에 관한 것으로, (1-x)(A'
1-y A"
y )O-xP
2 O
5 (0-
公开(公告)号：KR1020050021856A
公开(公告)日：2005-03-07
申请号：KR1020030060010
申请日：2003-08-28
Applicant: 재단법인서울대학교산학협력재단
IPC: C01B25/32
CPC classification number: C01B25/32 , C01P2004/10 , C01P2004/20
Abstract: PURPOSE: To provide a method for preparing apatite powder having various shapes, sizes and specific surface areas by controlling reaction temperature and drying conditions. CONSTITUTION: The method for preparing apatite powder comprises steps of: preparing a mixed aqueous solution comprising calcium salt and phosphate; producing an intermediate reaction product having a phase different from that of the apatite by reacting calcium salt with phosphate in the aqueous solution; aging the aqueous solution to synthesize apatite powder from the intermediate reaction product; and drying a slurry precipitated in the aqueous solution, wherein the intermediate reaction product is dicalcium phosphate dihydrate, wherein the calcium salt is calcium hydroxide, and the phosphate is phosphoric acid, wherein the aging step is performed at a temperature of 5 to 90 deg.C, and wherein the apatite powder is formed in a lamella particle shape.
Abstract translation: 目的：提供通过控制反应温度和干燥条件制备具有各种形状，大小和比表面积的磷灰石粉末的方法。 构成：制备磷灰石粉末的方法包括以下步骤：制备包含钙盐和磷酸盐的混合水溶液; 通过在水溶液中使钙盐与磷酸盐反应，生成具有与磷灰石不同的相的中间反应产物; 老化水溶液以从中间反应产物合成磷灰石粉末; 并干燥在所述水溶液中沉淀的浆料，其中所述中间反应产物是磷酸二钙二水合物，其中所述钙盐是氢氧化钙，并且所述磷酸盐是磷酸，其中所述老化步骤在5至90℃的温度下进行。 C，并且其中所述磷灰石粉末形成为薄片颗粒形状。
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