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公开(公告)号：KR3008005590000S
公开(公告)日：2015-06-11
申请号：KR3020140034604
申请日：2014-07-15
Applicant: 영남대학교 산학협력단
Designer： 이재형
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公开(公告)号：KR3009562910000S
公开(公告)日：2018-05-14
申请号：KR3020170029132
申请日：2017-06-23
Applicant: 영남대학교 산학협력단
Designer： 이재형
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公开(公告)号：KR101857354B1
公开(公告)日：2018-05-11
申请号：KR1020160084129
申请日：2016-07-04
Applicant: 영남대학교 산학협력단
Abstract: 본발명은음각부를형성하고무기안료를포함하는에나멜유약을음각부에채워서열처리하고표면연마를하는상감기법을이용한세라믹표면의열처리방법에있어서, 상기세라믹을로에배치하고, 채워진에나멜유약이녹지않는온도에서로 내부를진공상태로만드는단계(제1단계); 상기에나멜유약이발라진세라믹을에나멜유약의통상의열처리온도까지가열하여진공상태에서에나멜유약의기공을닫히게하는단계(제2단계); 상기열처리되는세라믹에서진공의폐기공이형성된에나멜유약을가스로가압하는단계(제3단계) 및상기제3단계의세라믹을냉각시켜에나멜유약을경화시키는단계(제4단계)를포함하는상감기법을이용한세라믹표면의열처리방법을제공한다. 따라서디자인된로고나글자가세라믹표면상에형성되고난 이후에표면처리를위해연마하여도연마된표면에기공이남아있지않아서높은광택과미감을나타내고, 에나멜유약의기공이최소화되어로고나글자의강도가증가되고에나멜에의한세라믹케이스의강도저하도최소화되며, 장시간사용하여도스크래치나충격에의한로고나글자의훼손을방지할수 있다.
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公开(公告)号：KR101575561B1
公开(公告)日：2015-12-09
申请号：KR1020150102398
申请日：2015-07-20
Applicant: 영남대학교 산학협력단
IPC: C04B35/58 , C04B35/581
Abstract: 본발명은투명도가향상된다결정산질화알루미늄의제조방법에관한것으로, 보다상세하게는산질화알루미늄제조시 AlO와 AlN의혼합분체를상압반응소결하며, 이때 AlN의함량을 17 내지 26 몰%로정하고, 원료분체를상대밀도가 95% 이상이되도록 1575℃내지 1675℃로 1차소결시킨후, 더높은상대밀도를달성하도록 1900℃이상에서 2차소결한다. 본발명에따르면, 내부의미세기공이모두제거되어가시광선투과율이 70% 이상인입방정상의다결정산질화알루미늄세라믹을비교적낮은최종소결온도에서단시간에얻을수 있다.
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公开(公告)号：KR101350542B1
公开(公告)日：2014-01-14
申请号：KR1020120096459
申请日：2012-08-31
Applicant: 영남대학교 산학협력단
IPC: C04B35/565 , C04B35/573
CPC classification number: C04B35/573 , C04B35/62645 , C04B2235/3826 , C04B2235/9607
Abstract: The present invention relates to a manufacturing method for porous plate shape silicon carbide ceramics and, more specifically, to a manufacturing method for porous plate shape silicon carbide ceramics in which pore size is controlled by performing heat treatment at a temperature of more than 2250°C with alpha silicon carbide powders and a small amount of boron or aluminum additives without beta silicon carbide powders. The present invention is able to reduce manufacturing costs since high-priced fine beta silicon carbide powders are not used as compared to existing method, lowers impurity contents since precursors are not used and is able to manufacture porous plate shape silicon carbide ceramics with uniform microstructure by using alpha silicon carbide powders with an average particle diameter of more than 1 μm as raw materials. The porous plate shape silicon carbide ceramics according to the present invention exhibit physical properties such as high heat conductivity, intensity, gas permeability and the like.
Abstract translation: 本发明涉及一种多孔板状碳化硅陶瓷的制造方法，更具体地说，涉及通过在大于2250℃的温度下进行热处理来控制孔径的多孔板状碳化硅陶瓷的制造方法 用α碳化硅粉末和少量硼或铝添加剂，不含β碳化硅粉末。 本发明能够降低制造成本，因为与现有方法相比，高价格的β型碳化硅粉末不被使用，因为不使用前体而降低杂质含量，并且能够制造均匀微观结构的多孔板状碳化硅陶瓷 使用平均粒径大于1μm的α碳化硅粉末作为原料。 根据本发明的多孔板状碳化硅陶瓷具有高的导热性，强度，透气性等物理性质。
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Patent Agency Ranking
公开(公告)号：KR1020130029114A
公开(公告)日：2013-03-21
申请号：KR1020137003169
申请日：2011-08-17
Applicant: 영남대학교 산학협력단
CPC classification number: B44C1/00 , B32B18/00 , C04B35/486 , C04B2235/3224 , C04B2235/3225 , C04B2235/6025 , C04B2235/94 , C04B2235/9661 , C04B2237/348 , C04B2237/582 , C04B2237/78 , C04B2237/86 , G04B37/225
Abstract: PURPOSE: A zirconia ceramic case manufacturing method for a portable electronic device having a logo with an excellent sense of beauty is provided to prevent the twisting phenomenon of a logo shape by equalizing the sintering shrinkages of a zirconia case and a logo during a sintering process. CONSTITUTION: A zirconia ceramic case manufacturing method for a portable electronic device is composed of the following steps of: the step of molding a zirconia case molded article; the step of molding a logo with a zirconia material having the same compounds as the zirconia case molded article except color additions; the step of forming an intaglio on a press mild; the step of pressing the zirconia case molded article placed on the logo after the logo is placed on the intaglio; the step of sintering the zirconia case molded article; and the step of polishing the surface of the sintered zirconia case. The logo is molded with a thickness more than the depth of the intaglio of the press mold. The step of surface-polishing is implemented for the surfaces of the log and the zirconia case mold to have the same level of the surfaces.
Abstract translation: 目的：提供一种具有良好感觉的标志的便携式电子设备的氧化锆陶瓷盒制造方法，以通过在烧结过程中平衡氧化锆壳体和标志的烧结收缩率来防止标志形状的扭曲现象。 构成：用于便携式电子设备的氧化锆陶瓷盒制造方法包括以下步骤：模制氧化锆壳模制品的步骤; 用与氧化锆壳模制品相同的化合物的氧化锆材料模制标志的步骤除了添加颜色; 在印刷机上形成凹版的步骤温和; 将标志放置在凹版上之后，将放置在标志上的氧化锆壳模制品按压的步骤; 烧结氧化锆壳模制品的步骤; 以及抛光氧化锆烧结体的表面的步骤。 该标志的成型厚度大于压模的凹版深度。 对于木材和氧化锆壳模具的表面实施表面抛光的步骤以具有相同水平的表面。
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公开(公告)号：KR101218968B1
公开(公告)日：2013-01-08
申请号：KR1020110007358
申请日：2011-01-25
Applicant: 영남대학교 산학협력단
CPC classification number: Y02P70/56
Abstract: 본발명은고체산화물연료전지용음극재의제조방법에관한것으로, 새로운기공형성제로서지르코늄화합물또는니켈화합물을사용함으로써원하는고체산화물연료전지의음극의특성, 예를들어기공율, 수축율등을얻을수 있으며, 고체산화물연료전지용음극재의취약점인강도, 전기전도도및 가스투과율또한개선할수 있다.
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公开(公告)号：KR1020100004913A
公开(公告)日：2010-01-13
申请号：KR1020097009463
申请日：2006-10-16
Applicant: 영남대학교 산학협력단
IPC: C01B21/072 , C04B35/10 , C04B35/111 , C04B35/115
CPC classification number: C04B35/10 , C04B35/111 , C04B35/115
Abstract: PURPOSE: A method for preparing transparent polycrystalline aluminum oxynitride is provided to reduce manufacturing costs for producing the polycrystalline aluminum oxynitride, and to prevent degradation of transparency of the polycrystalline aluminum oxynitride. CONSTITUTION: A method for preparing transparent polycrystalline aluminum oxynitride includes a step for pre-sintering raw material powder in which a sintering additive is added at a temperature of 1550°C ~ 1750°C and a step for re-sintering the powder to make higher relative density in 1900°C or greater. A pre-sintering process is performed in a nitrogen gas atmosphere for 10 hours, and a re-sintering process is performed in the nitrogen gas atmosphere in 2000°C for 5 hours.
Abstract translation: 目的：提供一种制备透明多晶氮氧化铝的方法，以降低制造多晶氮氧化铝的制造成本，并且防止多晶氮氧化铝的透明性降低。 构成：制备透明多晶氮氧化铝的方法包括预烧结原料粉末的步骤，其中在1550℃〜1750℃的温度下加入烧结添加剂，以及重新烧结粉末以使其更高的步骤 相对密度在1900°C以上。 在氮气气氛中进行10小时的预烧结处理，在氮气气氛中，在2000℃下进行再烧结5小时。
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公开(公告)号：KR3009562900000S
公开(公告)日：2018-05-14
申请号：KR3020170029131
申请日：2017-06-23
Applicant: 영남대학교 산학협력단
Designer： 이재형
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公开(公告)号：KR3009560080000S
公开(公告)日：2018-05-11
申请号：KR3020170029130
申请日：2017-06-23
Applicant: 영남대학교 산학협력단
Designer： 이재형
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