Journal of Ceramic Science and Technology最新文献

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Miniature Lowpass Filters in Low Loss 9k7 LTCC 低损耗9k7 LTCC中的微型低通滤波器
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2015-09-28 DOI: 10.4071/CICMT-TP11
S. Dai, L. Hsieh
{"title":"Miniature Lowpass Filters in Low Loss 9k7 LTCC","authors":"S. Dai, L. Hsieh","doi":"10.4071/CICMT-TP11","DOIUrl":"https://doi.org/10.4071/CICMT-TP11","url":null,"abstract":"DuPont 9k7 low temperature cofired ceramic (LTCC) is a low loss, or high quality factor Q, tape system targeting at radio frequency (RF) applications. This paper reports the effect of a critical process parameter, heating rate, on the densification and dielectric properties of the 9k7 LTCC. The role of competing densification and crystallization during the sintering of 9k7 is discussed. The high Q of DuPont 9K7 can be used to improve RF system performance, for example a better receiver noise figure, by designing embedded passive RF components such as inductors, capacitors and filters. Miniaturized multilayer low pass filters (LPF) with a wide stopband were fabricated to showcase the technology.","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"2015 1","pages":"000054-000057"},"PeriodicalIF":0.5,"publicationDate":"2015-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70524979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
3D FOCALIZATION MICROFLUIDIC DEVICE BUILT WITH LTCC TECHNOLOGY FOR NANOPARTICLE GENERATION USING NANOPRECIPITATION ROUTE 采用LTCC技术构建的三维聚焦微流控装置,利用纳米沉淀法生成纳米颗粒
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2015-09-28 DOI: 10.4071/CICMT-THA13
Houari Cobas Gomez, M. Gongora-Rubio, Bianca Oliveira Agio, V. T. Kimura, Adriano Marim de Oliveira, L. W. Ramos, A. Seabra
{"title":"3D FOCALIZATION MICROFLUIDIC DEVICE BUILT WITH LTCC TECHNOLOGY FOR NANOPARTICLE GENERATION USING NANOPRECIPITATION ROUTE","authors":"Houari Cobas Gomez, M. Gongora-Rubio, Bianca Oliveira Agio, V. T. Kimura, Adriano Marim de Oliveira, L. W. Ramos, A. Seabra","doi":"10.4071/CICMT-THA13","DOIUrl":"https://doi.org/10.4071/CICMT-THA13","url":null,"abstract":"Nanoprecipitation is a nanonization technique used for nanoparticle generation. Several fields, like pharmacology and fine chemistry, make use of such technique. Typically are used a bulky batch mechanical processes rendering high polydispersity index of generated nanoparticles, poorly particle size reproducibility and energy wasting. LTCC-based microsystem technologies allow the implementation of different unitary operations for chemical process, making it an enabling technology for the miniaturization of chemical processes. In fact, recently LTCC microfluidic reactors have been used to produce micro and nanoparticles with excellent control of size distribution and morphology. The present work provides a report on the performance of a 3D LTCC flow focusing Microfluidic device designed to fabricate polymeric nanocapsules for Hydrocortisone drug encapsulation, using nanoprecipitation route. Monodisperse Hydrocortisone nanocapsules were obtained with sizes (Tp) from 188.9 nm to 459.1 nm with polydispersity ...","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"2015 1","pages":"000275-000280"},"PeriodicalIF":0.5,"publicationDate":"2015-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70524679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Practical colloidal processing of multication ceramics 复合陶瓷的实用胶体加工
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2015-09-07 DOI: 10.4416/JCST2015-00025
N. Bell, T. Monson, C. Diantonio, Yiquan Wu
{"title":"Practical colloidal processing of multication ceramics","authors":"N. Bell, T. Monson, C. Diantonio, Yiquan Wu","doi":"10.4416/JCST2015-00025","DOIUrl":"https://doi.org/10.4416/JCST2015-00025","url":null,"abstract":"The use of colloidal processing principles in the formation of ceramic materials is well appreciated for developing homogeneous material properties in sintered products, enabling novel forming techniques for porous ceramics or 3D printing, and controlling microstructure to enable optimized material properties. The solution processing of electronic ceramic materials often involves multiple cationic elements or dopants to affect microstructure and properties. Material stability must be considered through the steps of colloidal processing to optimize desired component properties. This review provides strategies for preventing material degradation in particle synthesis, milling processes, and dispersion, with case studies of consolidation using spark plasma sintering of these systems. The prevention of multication corrosion in colloidal dispersions can be achieved by utilizing conditions similar to the synthesis environment or by the development of surface passivation layers. The choice of dispersing surfactants can be related to these surface states, which are of special importance for nanoparticle systems. A survey of dispersant chemistries related to some common synthesis conditions is provided for perovskite systems as an example. These principles can be applied to many colloidal systems related to electronic and optical applications.","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"7 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2015-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70791246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
The Effect of the Glass Phase on the Modulus of Rupture of High-Alumina Refractories 玻璃相对高铝耐火材料断裂模量的影响
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2015-09-01 DOI: 10.4416/JCST2015-00009
W. Yuan, Q. Zhu, C. Deng, H. Zhu
{"title":"The Effect of the Glass Phase on the Modulus of Rupture of High-Alumina Refractories","authors":"W. Yuan, Q. Zhu, C. Deng, H. Zhu","doi":"10.4416/JCST2015-00009","DOIUrl":"https://doi.org/10.4416/JCST2015-00009","url":null,"abstract":"Owing to their high refractoriness and slag resistance, high-alumina refractories are widely used in the lining of steelmaking furnaces, glass furnaces and cement rotary kilns in high-temperature industries. The impurities in the raw materials react to form the glass phase, which can melt into liquid at high temperatures. The modulus of rupture of refractories depends intensively on the content and composition of the glass phase. In this work, the cold and hot modulus of rupture for high-alumina bricks were investigated by means of fitting based on different theories. The effect of the glass phase on the modulus of rupture was analyzed by combining the phase composition, morphology of fracture surfaces and porosity for high-alumina refractories.","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"6 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70790411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Additive Manufacturing to Produce Complex 3D Ceramic Parts 增材制造生产复杂的3D陶瓷零件
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2014-12-02 DOI: 10.4416/JCST2014-00040
T. Chartier, Cyrielle Dupas, M. Lasgorceix, J. Brie, N. Delhote, C. Chaput
{"title":"Additive Manufacturing to Produce Complex 3D Ceramic Parts","authors":"T. Chartier, Cyrielle Dupas, M. Lasgorceix, J. Brie, N. Delhote, C. Chaput","doi":"10.4416/JCST2014-00040","DOIUrl":"https://doi.org/10.4416/JCST2014-00040","url":null,"abstract":"Attempts to improve the performance of ceramic parts have recently led to advances in their design and in the processes used to tailor these parts. Thus, Additive Manufacturing (AM) technologies, initially developed in the polymers and metals industries, have become of increasing interest for shaping ceramic parts. Among AM techniques, photopolymerization (referred to as stereolithography (SLA) and micro-stereolithography) makes it possible to reach high accuracy that matches the design requirements for new applications of ceramics in a wide range of fields. The development by means of (micro)-stereolithography of complex 3D ceramic parts with improved performance requires the mastering of various parameters linked to the inorganic-organic system involved in this processing route. This paper reports on some recent achievements in the production of ceramics using photopolymerization. Some examples of the work performed at the SPCTS laboratory to produce complex 3D ceramic parts for applications in the fields of information and communication technologies, healthcare and jewellery are presented.","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"6 1","pages":"95-104"},"PeriodicalIF":0.5,"publicationDate":"2014-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70789957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 64
Additive manufacturing of ceramics: A review 陶瓷增材制造:综述
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2014-12-01 DOI: 10.4416/JCST2014-00032
J. Deckers, J. Vleugels, J. Kruth
{"title":"Additive manufacturing of ceramics: A review","authors":"J. Deckers, J. Vleugels, J. Kruth","doi":"10.4416/JCST2014-00032","DOIUrl":"https://doi.org/10.4416/JCST2014-00032","url":null,"abstract":"Additive manufacturing (AM) of ceramics is coming to an aera where the first industrial applications are becoming economically profitable. This review paper provides a survey of AMmethods reported in literature to shape ceramic components. It demonstrates that AM has produced ceramic parts that have no cracks or large pores and have mechanical properties close to those of conventionally produced ceramics. Crackand pore-free ceramics can be manufacturedbyoptimizing theAMprocess parameters orperforming extradensification steps after theAMprocess. It is also advisable to incorporate colloidal processing techniques in the AM process. Finally, the paper demonstrates that, especially forAMof ceramics, themulti-step indirectAMprocesses aremore appropriate to shape different types of ceramics, while the single-step direct AM processes can produce ceramic parts more rapidly.","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"5 1","pages":"245-260"},"PeriodicalIF":0.5,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70789891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 336
Characteristics of micro-gold-particle/glass-ceramic composite from post-sintering thermal treatment 烧结后热处理微金颗粒/玻璃陶瓷复合材料的特性
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2014-03-01 DOI: 10.4416/JCST2013-00038
W. Yi, X. Sun, D. Niu, Xiao Hu
{"title":"Characteristics of micro-gold-particle/glass-ceramic composite from post-sintering thermal treatment","authors":"W. Yi, X. Sun, D. Niu, Xiao Hu","doi":"10.4416/JCST2013-00038","DOIUrl":"https://doi.org/10.4416/JCST2013-00038","url":null,"abstract":"Microstructural characteristics of a gold-particle (GP)-reinforced glass-ceramic (GC) composite at the GP/GC interface were investigated before and after heat treatment at 900, 1100 and 1300 °C. The interfacial regions between the GP and GC exposed on the fracture surface and relevant chemical reactions were examined. The as-processed GC matrix had a nano-scaled biphasic microstructure, with isolated amorphous leucite phase evenly distributed in the continuous feldspar matrix. After the GP/GC composite was heated at 900 °C, the amorphous leucite phases were transformed into leucite crystalline phases. Au 2 Si and Au 5 Si 2 found at the GP/GC interface proved that chemical reactions had indeed occurred during composite processing. Fracture surface features around the GP and GP/GC interface were further examined after heat treatment at 1100 °C and 1300 °C, showing new compounds were produced during the process. Characterization techniques, including X-ray diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM), incorporating X-ray microanalysis using Energy-Dispersive Spectrometry (EDS), were employed to study the GP/GC interface.","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"5 1","pages":"45-50"},"PeriodicalIF":0.5,"publicationDate":"2014-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70790244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurement of the volume expansion of SiC refractories induced by molten salt corrosion 熔盐腐蚀下碳化硅耐火材料体积膨胀的测定
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2013-12-04 DOI: 10.1002/9781118837009.CH11
E. Bilbao, P. Prigent, C. Mehdi-Souzani, M. Bouchetou, N. Schmitt, J. Poirier, E. Blond
{"title":"Measurement of the volume expansion of SiC refractories induced by molten salt corrosion","authors":"E. Bilbao, P. Prigent, C. Mehdi-Souzani, M. Bouchetou, N. Schmitt, J. Poirier, E. Blond","doi":"10.1002/9781118837009.CH11","DOIUrl":"https://doi.org/10.1002/9781118837009.CH11","url":null,"abstract":"Corrosion tests of oxide-bonded SiC-based refractory cylinders with molten salts (mainly CaSO4, K2SO4) were performed at high temperature to enable better understanding of the corrosion mechanisms operating in these materials. Salt pellets were placed on the upper surface of small refractory cylinders. After they had been melted, the corrosive product soaked into the pores of the refractory cylinders and partially corroded the SiC phase. SEMEDS analyses showed thatCaSiO3 was the mainnewphase formed, growing from SiC aggregates into the pores.Theshapes of the initial and corroded cylinders were measured at room temperature using a 3D coordinate measuring machine equipped with a laser-plane sensor. These measurements enabled monitoring of the evolution of the residual radial deformation versus the depth from the surface in contact with the salt pellets, and consequently the characterisation of the local volume expansion induced by the phase change. Coupling SEM-EDS analyses with 3D digitising revealed the link between the corrosion product and the volume expansion.","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"1391 ","pages":"65-68"},"PeriodicalIF":0.5,"publicationDate":"2013-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/9781118837009.CH11","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50730288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A modelling approach to design of microstructures in thermal barrier coatings 热障涂层微结构设计的建模方法
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2013-01-01 DOI: 10.4416/JCST2012-00044
M. Gupta, P. Nylén
{"title":"A modelling approach to design of microstructures in thermal barrier coatings","authors":"M. Gupta, P. Nylén","doi":"10.4416/JCST2012-00044","DOIUrl":"https://doi.org/10.4416/JCST2012-00044","url":null,"abstract":"Thermo-mechanical properties of TBCs are strongly influenced by coating defects, such as delaminations and pores, thus making it essential to have a fundamental understanding of microstructure-prop ...","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"4 1","pages":"85-92"},"PeriodicalIF":0.5,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70790321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Growth of 2M-Wollastonite Polycrystals by a Partial Melting and Recrystallization Process for the Preparation of High-Aspect-Ratio Particles 用部分熔融和再结晶法制备高纵横比颗粒的2m硅灰石多晶
IF 0.5 4区 材料科学
Journal of Ceramic Science and Technology Pub Date : 2012-01-01 DOI: 10.4416/JCST2012-00032
Salt lake City, Utah.
{"title":"Growth of 2M-Wollastonite Polycrystals by a Partial Melting and Recrystallization Process for the Preparation of High-Aspect-Ratio Particles","authors":"Salt lake City, Utah.","doi":"10.4416/JCST2012-00032","DOIUrl":"https://doi.org/10.4416/JCST2012-00032","url":null,"abstract":"","PeriodicalId":48807,"journal":{"name":"Journal of Ceramic Science and Technology","volume":"125 1","pages":"169-180"},"PeriodicalIF":0.5,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70790125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
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