-
11.发明公开
公开(公告)号：KR1020030046531A
公开(公告)日：2003-06-18
申请号：KR1020010070509
申请日：2001-11-13
Applicant: 한국과학기술연구원
IPC: C04B35/634 , C09J7/00
CPC classification number: C04B35/63416 , C04B35/10 , C04B35/48 , C04B35/63424 , C04B35/636 , C04B2111/00836 , C04B2111/00844 , C04B2235/3217 , C04B2235/3244 , C09J7/20
Abstract: PURPOSE: Aqueous ceramic slurry and a method for preparing an aqueous ceramic tape using the slurry are provided, wherein the slurry contains no nonaqueous binder for preventing the danger of explosion, the environmental pollution and the problem of toxicity. CONSTITUTION: The aqueous ceramic slurry comprises metal oxide; 0.05-2.0 wt% of a dispersant, 10-50 wt% of water, 3-17 wt% of a plasticizer and 5-30 wt% of a PVP (poly(vinyl pyrrolidone)) binder based on the weight of the metal oxide; 0.5-30 wt% of a PVA (poly(vinyl alcohol)) binder based on the weight of the PVP binder; and optionally 0.1-2.0 wt% of gelatin as a binder based on the weight of the metal oxide. Preferably the metal oxide is alumina, spinel aluminate, zirconia or their mixtures; the dispersant is poly(methacrylic acid), poly(carboxylic acid), ammonium polyacrylate salt or ether; and the plasticizer is triethylene glycol, polyethylene glycol or their mixture.
Abstract translation: 目的：提供水性陶瓷浆料和使用该浆料制备水性陶瓷带的方法，其中，浆料不含非水性粘合剂，用于防止爆炸危险，环境污染和毒性问题。 构成：含水陶瓷浆料包含金属氧化物; 0.05-2.0重量％的分散剂，10-50重量％的水，3-17重量％的增塑剂和5-30重量％的PVP（聚（乙烯基吡咯烷酮））粘合剂，基于金属氧化物的重量 ; 基于PVP粘合剂的重量的0.5-30重量％的PVA（聚（乙烯醇））粘合剂; 和任选的0.1-2.0重量％的基于金属氧化物重量的明胶作为粘合剂。 优选地，金属氧化物是氧化铝，尖晶石铝酸盐，氧化锆或它们的混合物; 分散剂是聚（甲基丙烯酸），聚（羧酸），聚丙烯酸铵盐或醚; 增塑剂是三甘醇，聚乙二醇或其混合物。
-
公开(公告)号：KR100321293B1
公开(公告)日：2002-03-18
申请号：KR1019990016356
申请日：1999-05-07
Applicant: 한국과학기술연구원
IPC: C04B35/48
CPC classification number: C04B35/4885
Abstract: 본발명은저온열화가일어나지않고고강도및 고인성을갖는지르코니아/알루미나복합체를얻고자, 정방정지르코니아의조성비가 ZrO-YO-NbO또는 TaO의삼성분계정방정지르코니아의조성비가각각 92 mol% ZrO-4 mol% YO-4 mol% NbO또는 TaO, 89 mol% ZrO-7 mol% YO-4 mol% NbO또는 TaO, 86 mol% ZrO-7 mol% YO-7 mol% NbO또는 TaO의세 조성점들로구획되어지는삼각형조성범위내인정방정지르코니아분말, 또는이러한정방정지르코니아분말과 5-50 %(v/v)의알루미나를함유한지르코니아/알루미나복합체에관한것이다.
-
公开(公告)号：KR1019980014130A
公开(公告)日：1998-05-15
申请号：KR1019960032976
申请日：1996-08-08
Applicant: 한국과학기술연구원
IPC: C04B35/46
Abstract: 본 발명은 더욱 향상된 품질계수(Q), 유전율(K)과 공진주파수의 온도계수(τ
f )를 얻기 위하여, 90에서 99몰%의 (Zr
x Sn
y )Ti
z O
4 (x+y+z=2, 0.6dxd1.0, 0dyd0.4, 0.6dzd1.4)를 주성분으로 하는 유전체 자기 조성물에 0.5에서 5.0몰%의 산화마그네슘 및 0.5에서 5.0몰%의 산화탄탈륨 또는 0.5에서 5.0몰%의 산화니오비늄의 복합물이 첨가되고 이에 부가하여 0.75에서 1.5 중량%의 산화아연이 가해져 소결된 고주파용 유전체 자기 조성물을 제공한다.-
-
公开(公告)号：KR1019970001263B1
公开(公告)日：1997-02-04
申请号：KR1019960050644
申请日：1996-10-31
Applicant: 한국과학기술연구원
IPC: C04B35/106
CPC classification number: C04B35/488
Abstract: Method for manufacturing tetragonal zirconia polycrystal complex is provided which has high toughness without exhibiting low temperature degradation due to phase transition into monoclinic zirconia polycrystal even under exposure for log time at a low temperature range of 100 to 400 deg. C. Transitional tetragonal zirconia polycrystal produced from mixing 82 to 86 mol% of ZrO2 and 7 to 9 mol% of Y2O3, Nb2O5 and Ta2O5 respectively is mixed with not more than 60wt% of non-transitional tetragonal zirconia polycrystal having a composition of 93 to 97 mol% of ZrO2, 2 to 4 mol% of Y2O3 and 1 to 3 mol% of Nb2O5 or Ta2O5, and sintered at 1,500 deg. C or more for 2 to 10 hours, to produce the tetragonal zirconia polycrystal complex.
Abstract translation: 提供四方晶氧化锆多晶配合物的制造方法，即使在100〜400度的低温范围内，即使在曝光时间对数时，由于相转变成单斜晶氧化锆多晶而具有高韧性而不显示低温降解。 C.将82〜86mol％的ZrO 2和7〜9mol％的Y 2 O 3，Nb 2 O 5和Ta 2 O 5分别混合的过渡四方晶氧化锆多晶与不大于60wt％的非过渡四方晶氧化锆多晶相混合，组成为93〜 ZrO2为97摩尔％，Y2O3为2〜4摩尔％，Nb2O5或Ta2O5为1〜3摩尔％，烧结温度为1500度。 ℃以上2〜10小时，生成四方晶氧化锆多晶复合体。
-
Patent Agency Ranking
公开(公告)号：KR100525486B1
公开(公告)日：2005-11-02
申请号：KR1020030019266
申请日：2003-03-27
Applicant: 한국과학기술연구원
IPC: C04B35/632
Abstract: 본 발명은 물을 용매로 포함하고 수계 결합제를 포함하는 세라믹 슬러리의 제조, 이를 이용한 세라믹 테이프 제조방법 및 이들을 이용하여 제조된 세라믹 테이프에 관한 것이다. 즉, 본 발명은 용매로서 물을 사용하고 결합제로서 아크릴 에멀젼과 HPMC를 혼합 사용하는 것을 특징으로 하며, 이들을 유리-알루미나 복합 분말, 분산제, 가소제 등과 혼합하는 수계 세라믹 슬러리 및 이를 혼합, 탈포, 성형 건조하는 것을 포함하는 세라믹 테이프 제조에 관한 것이다.
-
公开(公告)号：KR1020040084295A
公开(公告)日：2004-10-06
申请号：KR1020030019266
申请日：2003-03-27
Applicant: 한국과학기술연구원
IPC: C04B35/632
CPC classification number: C04B35/63424 , C04B35/10 , C04B35/14 , C04B35/6365
Abstract: PURPOSE: Provided are an aqueous ceramic slurry containing an acryl emulsion as a binder and a method for producing a ceramic tape for LTCC(low temperature co-fired ceramic) by using the aqueous ceramic slurry. The ceramic tape dose not generate environmental pollution and is not harmful to human bodies. CONSTITUTION: The aqueous ceramic slurry comprises 100pts.wt. of a metal oxide powder, 0.1-3.0pts.wt. of a dispersant, 15-50pts.wt. of water, 5-20pts.wt. of an aqueous binder, and 3-15pts.wt. of a plasticizer, wherein the aqueous binder is a mixture of the acryl emulsion and HPMC(hydroxypropyl methyl cellulose). And the method for producing the ceramic tape contains the steps of: preparing the ceramic slurry; ball-milling the ceramic slurry and then stirring under a vacuum at a fixed speed to remove residual foams from the slurry and to reach a proper viscosity; forming the defoamed ceramic slurry into a sheet. The ceramic tape for LTCC produced by the method has a thickness of 20-200 micrometer.
Abstract translation: 目的：提供含有丙烯酸乳液作为粘合剂的水性陶瓷浆料和通过使用含水陶瓷浆料制备用于LTCC（低温共烧陶瓷）的陶瓷带的方法。 陶瓷胶带不会产生环境污染，对人体无害。 构成：含水陶瓷浆料包含100pts.wt。 的金属氧化物粉末，0.1-3.0pts.wt。 的分散剂，15-50pts.wt。 的水，5-20pts.wt。 的水性粘合剂，和3-15pts.wt。 的增塑剂，其中水性粘合剂是丙烯酸乳液和HPMC（羟丙基甲基纤维素）的混合物。 制造陶瓷带的方法包括以下步骤：制备陶瓷浆料; 对陶瓷浆料进行球磨，然后以固定速度在真空下搅拌，以从浆料中除去残余的泡沫并达到适当的粘度; 将消泡的陶瓷浆料形成片材。 该方法生产的LTCC陶瓷带的厚度为20-200微米。
-
公开(公告)号：KR100444746B1
公开(公告)日：2004-08-16
申请号：KR1020010070509
申请日：2001-11-13
Applicant: 한국과학기술연구원
IPC: C04B35/634 , C09J7/00
Abstract: PURPOSE: Aqueous ceramic slurry and a method for preparing an aqueous ceramic tape using the slurry are provided, wherein the slurry contains no nonaqueous binder for preventing the danger of explosion, the environmental pollution and the problem of toxicity. CONSTITUTION: The aqueous ceramic slurry comprises metal oxide; 0.05-2.0 wt% of a dispersant, 10-50 wt% of water, 3-17 wt% of a plasticizer and 5-30 wt% of a PVP (poly(vinyl pyrrolidone)) binder based on the weight of the metal oxide; 0.5-30 wt% of a PVA (poly(vinyl alcohol)) binder based on the weight of the PVP binder; and optionally 0.1-2.0 wt% of gelatin as a binder based on the weight of the metal oxide. Preferably the metal oxide is alumina, spinel aluminate, zirconia or their mixtures; the dispersant is poly(methacrylic acid), poly(carboxylic acid), ammonium polyacrylate salt or ether; and the plasticizer is triethylene glycol, polyethylene glycol or their mixture.
Abstract translation: 目的：提供一种含水陶瓷浆料和使用该浆料制备含水陶瓷带的方法，其中该浆料不含非水粘合剂以防止爆炸危险，环境污染和毒性问题。 组成：含水陶瓷浆料包含金属氧化物; 基于金属氧化物的重量，0.05-2.0重量％的分散剂，10-50重量％的水，3-17重量％的增塑剂和5-30重量％的PVP（聚（乙烯吡咯烷酮））粘合剂 ; 基于PVP粘合剂的重量，0.5-30重量％的PVA（聚（乙烯醇））粘合剂; 和任选的0.1-2.0重量％的明胶作为基于金属氧化物重量的粘合剂。 优选金属氧化物是氧化铝，尖晶石铝酸盐，氧化锆或它们的混合物; 分散剂为聚（甲基丙烯酸），聚（羧酸），聚丙烯酸铵盐或醚; 增塑剂是三甘醇，聚乙二醇或它们的混合物。
-
公开(公告)号：KR100405970B1
公开(公告)日：2003-11-14
申请号：KR1020010057507
申请日：2001-09-18
Applicant: 한국과학기술연구원
IPC: B22F1/00
Abstract: PURPOSE: A synthesizing method of fine powder of copper using organic solvent is provided to directly prepare copper powder without reduction treatment by inducing reaction of organic solvent at proper temperature and pressure. CONSTITUTION: The synthesizing method of fine powder of copper using organic solvent comprises the processes of preparing copper hydroxide sediment by reacting a copper precursor aqueous solution with a neutralizer selected from calcium hydroxide (KOH), sodium hydroxide (NaOH) and ammonium hydroxide (NH4OH); and reacting the mixed solution at a temperature of 200 to 300 deg.C for 0.5 to 20 hours after dissolving the sediment into an organic solvent, wherein the copper precursor is at least one or more precursors selected from copper nitrate hydride (Cu(NO3)2·xH2O), copper chloride dehydride (CuCl2·2H2O), copper sulfide pentahydride (CuSO4·5H2O) and copper sulfide hydride (CuSO4·xH2O), wherein the organic solvent is at least one or more solvents selected from ethylene glycol, di(ethylene glycol), polyethylene glycol and butanediol, and wherein centrifuge method is used to recover the obtained copper fine powder.
Abstract translation: 目的：提供使用有机溶剂的铜细粉的合成方法，通过在适当的温度和压力下引发有机溶剂的反应而直接制备铜粉而不进行还原处理。 构成：使用有机溶剂的铜细粉的合成方法包括通过使铜前体水溶液与选自氢氧化钙（KOH），氢氧化钠（NaOH）和氢氧化铵（NH 4 OH）的中和剂反应来制备氢氧化铜沉积物的方法， ; 并且在将沉淀物溶解于有机溶剂中之后，将混合溶液在200至300℃的温度下反应0.5至20小时，其中所述铜前体是至少一种或多种选自硝酸铜（Cu（NO 3） （CuCl 2·2H 2 O），硫化铜五水合物（CuSO 4·5H 2 O）和硫化氢铜（CuSO 4·xH 2 O），其中有机溶剂为至少一种或多种 选自乙二醇，二（乙二醇），聚乙二醇和丁二醇中的溶剂，并且其中使用离心法来回收所获得的铜细粉。
-
20.发明授权
公开(公告)号：KR100420930B1
公开(公告)日：2004-03-02
申请号：KR1020010024315
申请日：2001-05-04
Applicant: 한국과학기술연구원
Abstract: PURPOSE: Provided is a water-based ceramic slurry using water, and polyvinyl pyrrolidone(PVP) and gelatin as solvent and a binder based on water, unlike conventional nonwater-based solvent and binder, for producing ceramic tapes. CONSTITUTION: The water-based ceramic slurry comprises the components of: metal oxide powder such as Al2O3, magnesium aluminate spinel, ZrO2, Al2O3/ZrO2 composite or spinel/ZrO2 composite; 0.01-2.0wt.% of dispersant such as polymethacrylic acid, polycarboxylic acid, ammonium polyacrylate or ether; 20-90wt.% of water; 5-20wt.% of PVP and 0.1-2.0wt.% of gelatin as a binder; 3-17wt.% of plasticizer such as triethylene glycol or polyethylene glycol. The each amount is based on the metal oxide powder and 0.3-2.0wt.%(based on the total components) surfactant is optionally added. The preparation method of ceramic tapes is as follows: mixing all components except gelatin, for a ceramic slurry with a viscosity of 1000-3000cps; defoaming by heating the slurry in boiling water(50-80deg.C); adding a gelatin solution, obtained by dissolving gelatin into water(50-80deg.C), and defoaming again; and forming the slurry into a sheet.
Abstract translation: 目的：提供一种使用水，聚乙烯吡咯烷酮（PVP）和明胶作为溶剂和基于水的粘合剂的水基陶瓷浆料，与传统的非水基溶剂和粘合剂不同，用于生产陶瓷带。 组成：水基陶瓷浆料由以下组分组成：金属氧化物粉末，如Al2O3，铝酸镁尖晶石，ZrO2，Al2O3 / ZrO2复合物或尖晶石/ ZrO2复合物; 0.01-2.0重量％的分散剂如聚甲基丙烯酸，多元羧酸，聚丙烯酸铵或醚; 20-90重量％的水; 5-20重量％的PVP和0.1-2.0重量％的作为粘合剂的明胶; 3-17重量％的增塑剂如三甘醇或聚乙二醇。 每种量基于金属氧化物粉末，并且任选地添加0.3-2.0重量％（基于总组分）表面活性剂。 陶瓷带的制备方法如下：将除明胶外的所有组分混合，制备粘度为1000-3000cps的陶瓷浆料; 通过在沸水（50-80℃）中加热浆料来消泡; 加入将明胶溶于水（50-80℃）得到的明胶溶液，再次消泡; 并将浆料成形为片材。
-
-
-
-
-
-
-
-
-
Search Results
24
records
(took 0.041 seconds)
