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31.发明授权Ｆｅ가 도핑된 스커테루다이트계 고효율 열전소재 및 그제조방법 失效高效率掺ED ITE ITE ITE ITE ITE ITE IC IC AME AME AME AME AME AME AME AME AME AME AME
公开(公告)号：KR100663975B1
公开(公告)日：2007-01-02
申请号：KR1020050098378
申请日：2005-10-19
Applicant: 한국교통대학교산학협력단
Abstract: A skutterudite-based thermoelectric material doped with Fe and a manufacturing method thereof are provided to manufacture a skutterudite alloy of CoSb3 having little micro crack through a simple process. Powders of Fe, Co, and Sb are prepared to obtain a composition of FexCo(4-x)Sb12, and then the powders are mixed. The mixed powders are subjected to a mechanical alloy process under an inert atmosphere. The powders subjected to the mechanical alloy process are subjected to a hot rolling and compression molding process. The mechanical alloy process is performed by an attritor.
Abstract translation: 提供掺杂Fe的方钴矿基热电材料及其制造方法，通过简单的工艺制造具有微小裂纹的CoSb3的方钴矿合金。 制备Fe，Co和Sb的粉末以获得FexCo（4-x）Sb12的组成，然后将粉末混合。 混合粉末在惰性气氛下进行机械合金处理。 对经过机械合金处理的粉末进行热轧和压缩加工。 机械合金工艺由磨碎机进行。
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公开(公告)号：KR100663971B1
公开(公告)日：2007-01-02
申请号：KR1020050078357
申请日：2005-08-25
Applicant: 한국교통대학교산학협력단 , 고려전자주식회사
IPC: C04B35/491 , C04B35/493
Abstract: PNN-PZT piezoelectric ceramics with constant content of NiO are provided to have dielectric and piezoelectric properties such as piezoelectric charge constant and are preferably used for accelerometer sensors by comprising PbO, TiO2, NiNb2O6 and ZrO2 and adding NiO in desired content to the ceramics. The piezoelectric ceramics are formed by steps of: preparing each of PbO, ZrO2, TiO2 and NiNb2O6 powders as starting materials; calcining the starting materials, NiO and Nb2O5; milling all of the starting materials then drying the milled powders; sizing and calcining the dried powders; adding additives to the powders after crushing the calcined powders; and milling the mixture. The obtained ceramics contain NiO in solid solution form and has perovskite crystalline structure and composition of 0.5Pb(Zr0.52Ti0.48)O30.5Pb(Ni1/3Nb2/3)O3-y[mol%]NiO-1[wt%]PbO wherein y is 1.0.
Abstract translation: 提供具有恒定含量的NiO的PNN-PZT压电陶瓷以具有诸如压电电荷常数的电介质和压电性能，并且优选用于通过包括PbO，TiO 2，NiNb 2 O 6和ZrO 2并将所需内容物中的NiO添加到陶瓷中的加速度计传感器。 压电陶瓷由以下步骤形成：以PbO，ZrO2，TiO2和NiNb2O6粉末为原料， 焙烧原料NiO和Nb2O5; 研磨所有起始材料，然后干燥研磨的粉末; 上浆和煅烧干粉; 在粉碎煅烧粉末后，向粉末中添加添加剂; 并研磨混合物。 得到的陶瓷含有固溶体形式的NiO，具有钙钛矿晶体结构，组成为0.5Pb（Zr0.52Ti0.48）O30.5Pb（Ni1 / 3Nb2 / 3）O3-y [mol％] NiO-1 [wt％] 其中y为1.0。
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公开(公告)号：KR1020060082913A
公开(公告)日：2006-07-20
申请号：KR1020050003278
申请日：2005-01-13
Applicant: 한국교통대학교산학협력단 , 고려전자주식회사
IPC: C04B35/493 , C04B35/491
Abstract: 0.05Pb(Mn
1/3 Sb
2/3 )O
3 -0.95Pb(Zr,Ti)O
3 -x(mol%)ZnO-1(wt%)PbO (0≤x≤5)의 조성을 가지는 압전 특성이 우수한 PMS-PZT 세라믹이 제공된다. 그 제조 방법은 아래와 같은 단계로 이루어진다. 0.05Pb(Mn
1/3 Sb
2/3 )O
3 -0.95Pb(Zr,Ti)O
3 -x(mol%)ZnO-1(wt%)PbO (0≤x≤5)의 조성이 되도록 PbO, ZrO
2 , TiO
2 , MnO
2 , Sb
2 O
3 및 ZnO의 원료분말을 준비하는 단계; 상기 원료분말로부터 건조 분말을 형성시키는 단계; 상기 건조 분말을 분급한 후 하소하는 단계; 상기 하소된 분말에 첨가제 및 결합제를 공급한 뒤 건조시키는 단계; 상기 건조된 분말을 가압 성형하여 성형체를 만드는 단계; 및 상기 성형체를 그와 동일한 조성의 분위기 내에서 소결하는 단계.
PMS-PZT, 압전 세라믹-
公开(公告)号：KR1020060022949A
公开(公告)日：2006-03-13
申请号：KR1020040071751
申请日：2004-09-08
Applicant: 한국교통대학교산학협력단 , 고려전자주식회사
IPC: C04B35/493 , C04B35/491 , H01L41/187
Abstract: 본 발명은 PMN-PZT계 압전 세라믹스 및 그 제조방법에 관한 것으로, PMN-PZT계 압전 세라믹스를 조성식 0.5Pb(Mg
⅓ Nb
⅔ )O
3 -0.5Pb(Zr,Ti)O
3 -x[wt%]Mn0₂-1[wt%]PbO (몰비 0-
公开(公告)号：KR1020010018176A
公开(公告)日：2001-03-05
申请号：KR1019990034005
申请日：1999-08-17
Applicant: 한국교통대학교산학협력단
IPC: B22D18/04
CPC classification number: B22D18/02 , B22D21/007
Abstract: PURPOSE: A method for manufacturing an alloy for squeeze casting is provided to improve castability by pressurizing effect during squeeze casting, and improve tensile strength by pressurizing and rapidly cooling effects due to squeeze casting. CONSTITUTION: A method for manufacturing an alloy for squeeze casting comprises the processes of choosing an alloy in which 1 to 7 wt.% of Fe is contained and AC4C alloy as starting alloys, melting the alloys at a temperature of 850 to 900 deg.C in an electric resistance furnace, gravity casting and squeeze casting the melted alloys with melt which is multi-gas treated within the range of 0.2 melt weight, manufacturing a sample in a bar shape having a size of 5 mm (diameter) x 10 cm (length) using a vertically pressurized type squeeze casting press (1) in the squeeze casting, wherein 750 deg.C of a temperature of the melt is maintained as an injection temperature, preheating a mold (4) at a temperature of 200 to 250 deg.C so that inner surface of the mold (4) and a punch (2) are coated with an oil based graphite releasing agent, and presetting a pressurizing pressure of 50 to 100 MPa, a pressurizing time of 60 sec, and a pressurizing rate of 20 mm/sec after injecting the melt.
Abstract translation: 目的：提供一种制造用于挤压铸造的合金的方法，以通过挤压铸造期间的加压效果来提高铸造性，并且通过挤压加压和快速冷却效果来提高拉伸强度。 构成：制造用于挤压铸造的合金的方法包括选择含有1至7重量％的Fe的合金和AC4C合金作为起始合金的方法，在850至900℃的温度下熔化合金 在电阻炉中，重力铸造并熔融熔融的熔融合金，该熔融合金在0.2熔体重量的范围内进行多气体处理，制造尺寸为5mm（直径）×10cm的棒状样品（ 长度），在挤压铸造中使用垂直加压型挤压铸造压力机（1），其中将熔体的温度保持750℃作为注射温度，在200至250℃的温度下预热模具（4） 使得模具（4）的内表面和冲头（2）涂覆有油基石墨脱模剂，并且预设加压压力为50至100MPa，加压时间为60秒，加压速率 注射熔体后为20mm / sec。
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Patent Agency Ranking
公开(公告)号：KR1020170078355A
公开(公告)日：2017-07-07
申请号：KR1020150188794
申请日：2015-12-29
Applicant: 한국교통대학교산학협력단
Abstract: 본발명은스커테루다이트계열전재료및 그제조방법에관한것이다. 보다상세하게는본 발명은스커테루다이트계열전재료에있어서, 공극에 Pr, Nd, Yb 에서선택된원소중 적어도하나이상의원소로충진되고, 이를전하보상하기위하여 Fe 자리에일부 Co를포함하는것을특징으로하는 p형스커테루다이트계열전재료및 그제조방법에관한것이다.
Abstract translation: 基于方钴矿的前体材料及其制造方法技术领域本发明涉及一种基于方钴矿的前体材料及其制造方法。 为了更具体地包括一些共同成Fe座椅在材料周围系列本发明木槿特鲁埃尔模具位，它填充有元件的至少一个元件与镨，钕，Yb中到间隙中，为了补偿电荷 本发明涉及一种p型方钴矿基前体材料及其制造方法。
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公开(公告)号：KR101470197B1
公开(公告)日：2014-12-05
申请号：KR1020130088701
申请日：2013-07-26
Applicant: 주식회사 제펠 , 한국교통대학교산학협력단
Abstract: Bi
2 Te
2
.85 Se
0
.15 의 캐리어 농도의 최적화와 함께 출력인자와 성능지수의 향상을 이루어 열전특성이 개선된 Bi-Te-Se계 고용체로 이루어진 열전 재료를 제시한다. 그 열전 재료는 Bi
2 Te
2
.85 Se
0
.15 :D
m (D= I, Cu, Ag, m= 0보다 크고 0.03 미만)의 화학양론적 조성으로, D가 Bi
2 Te
2
.85 Se
0
.15 에 도핑된 Bi-Te-Se계 고용체로 이루어진다.Abstract translation: 公开了一种包含Bi-Te-Se系固溶体的热电材料，其优化Bi_2Te_2.85Se_0.15的载流子浓度，同时通过提高输出系数和性能指标来提高热电性能。 热电材料具有Bi_2Te_2.85S_e0.15：Dm（D = I，Cu，Ag，m大于0且小于0.03）的化学计量组成，并且包括其中D为的Bi-Te-Se基固溶体 掺杂Bi_2Te_2.85S_e0.15。
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公开(公告)号：KR1020140019086A
公开(公告)日：2014-02-14
申请号：KR1020120082260
申请日：2012-07-27
Applicant: 한국교통대학교산학협력단
Abstract: The present invention relates to a method for manufacturing a high manganese silicide-based thermoelectric material having excellent performance with low costs by hot pressing high manganese silicide powder, formed by planetary ball milling, in a vacuum state, the method comprising: a first step of mixing manganese powder and silicon powder according to the composition of MnSi1.75-x(0
Abstract translation: 本发明涉及一种在真空状态下通过行星式球磨制成的通过热压高硅化锰粉末而具有优异性能，低成本的高硅锰化物热电材料的方法，该方法包括：第一步骤 根据MnSi1.75-x（0≤x≤0.03）的组成混合锰粉和硅粉末; 通过行星式球磨制造高锰硅电力的第二步; 以及在真空状态下热压高硅锰化物粉末进行烧结的第三步骤。 通过行星式球磨形成的高锰硅粉末在真空状态下热压制造高锰硅化物热电材料，从而降低制造成本。 与现有技术相比，本发明的制造方法便宜，同时需要工艺条件的优化，本发明可以提供最佳的工艺条件。
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公开(公告)号：KR101339880B1
公开(公告)日：2013-12-10
申请号：KR1020110112137
申请日：2011-10-31
Applicant: 한국교통대학교산학협력단
IPC: C22C1/04
Abstract: 열전 특성이 우수한 고효율 열전 재료 및 그 제조방법을 제공한다. 이를 위하여, 원료물질인 Zr, Ni, Sn, Sb 분말을 혼합하여 혼합 분말을 제조하는 단계; 상기 혼합 분말을 기계적 합금화 처리하는 단계; 및 진공 핫 프레스 공정을 수행하는 단계를 포함하여 ZrNiSn
1
-x Sb
x (0-
公开(公告)号：KR101330062B1
公开(公告)日：2013-11-18
申请号：KR1020120054297
申请日：2012-05-22
Applicant: 한국교통대학교산학협력단
Abstract: The present invention relates to a method for manufacturing a high manganese silicide thermoelectric material having excellent performance with a low cost by hot pressing high manganese silicide powder formed by a mechanical alloying in a vacuum state comprising a first step of mixing manganese powder and silicon powder according to the composition of MnSi1.75-x(0≤x≤0.04); a second step of manufacturing high manganese silicide power with a mechanical alloying; and a third step of hot pressing the high manganese silicide powder in the vacuum state for sintering. The present invention can drastically reduce a manufacturing cost compared to performing sintering by existing pulse carrying sintering or discharging plasma sintering as well as manufacturing high manganese silicide thermoelectric material having an excellent thermoelectric property by sintering high manganese silicide, which is manufactured by the mechanical alloying, by hot pressing in the vacuum state.
Abstract translation: 本发明涉及通过在真空状态下通过机械合金化而形成的高硅锰化物热压制成具有优异性能，低成本的高锰硅化物热电材料的方法，该方法包括：将锰粉末和硅粉末混合在一起的第一步骤， 对于MnSi1.75-x（0＆le; x＆le; 0.04）的组成; 用机械合金化制造高锰硅电力的第二步; 以及在真空状态下热压高硅锰化物粉末进行烧结的第三步骤。 与通过现有脉冲承载烧结或放电等离子体烧结进行烧结相比，本发明可以大大降低制造成本，并且通过烧结通过机械合金化制造的高锰硅化物制造具有优异热电性能的高锰硅热电材料， 通过在真空状态下热压。
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