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Composition control of SBN thin films deposited by PLD on various substrates PLD在不同衬底上沉积SBN薄膜的成分控制
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00140-4
J.R Duclère , M Guilloux-Viry , A Perrin , C Clerc , F Lalu , J Lesueur , S.M Zanetti , V Bouquet , E Longo
{"title":"Composition control of SBN thin films deposited by PLD on various substrates","authors":"J.R Duclère ,&nbsp;M Guilloux-Viry ,&nbsp;A Perrin ,&nbsp;C Clerc ,&nbsp;F Lalu ,&nbsp;J Lesueur ,&nbsp;S.M Zanetti ,&nbsp;V Bouquet ,&nbsp;E Longo","doi":"10.1016/S1466-6049(01)00140-4","DOIUrl":"10.1016/S1466-6049(01)00140-4","url":null,"abstract":"<div><p><span>Thin films of SrBi</span><sub>2</sub>Nb<sub>2</sub>O<sub>9</sub> (SBN) have been grown on both Pt/Ti/SiO<sub>2</sub><span><span>/Si and (100)MgO substrates by pulsed laser deposition. In the Sr–Bi–Nb–O system, the loss of </span>bismuth during the process due to its volatility results obviously in a non-respect of the stoichiometry of the films and the presence of secondary phases. In order to maintain the right composition of the films, two different ways were experimented. On Pt/Ti/SiO</span><sub>2</sub>/Si, a sequential deposition from home-made Bi<sub>2</sub>O<sub>3</sub><span> and SBN sintered targets as well as the use of Bi-enriched targets allows to obtain stoichiometric ferroelectric films. Various parameters like deposition time and periodicity of the Bi</span><sub>2</sub>O<sub>3</sub><span> and SBN layers are of first importance. On (100)MgO which promotes SBN epitaxial growth, this sequential deposition is not suitable and we succeeded in the control of the Bi/(Sr+Nb) ratio only by using Bi-enriched targets.</span></p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1133-1135"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00140-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78428640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Dielectric properties of nanocrystalline AlN with respect to its crystal chemistry 纳米晶AlN的介电性质及其晶体化学
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00147-7
A.R Olszyna , A Sokołowska , J Szmidt , A Werbowy , M Bąkowski
{"title":"Dielectric properties of nanocrystalline AlN with respect to its crystal chemistry","authors":"A.R Olszyna ,&nbsp;A Sokołowska ,&nbsp;J Szmidt ,&nbsp;A Werbowy ,&nbsp;M Bąkowski","doi":"10.1016/S1466-6049(01)00147-7","DOIUrl":"10.1016/S1466-6049(01)00147-7","url":null,"abstract":"<div><p><span>The aim of this study was to find an optimum silicon carbide-based dielectric material for high-temperature electronic applications. The crystal–chemical criteria adopted in the selection of appropriate material were: a nanocrystalline structure, </span><em>E</em><sub>g</sub>≫3.5 eV, <em>α</em>∼3.5×10<sup>−6</sup><span> 1/K. These criteria are fulfilled by aluminium nitride<span>. Thin nano-aluminium nitride layers were deposited on single-crystal silicon carbide plates (n-type) by impulse plasma assisted CVD. The structure of the aluminium nitride layers and the electro–physical properties of the AlN–SiC junction were examined.</span></span></p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1311-1313"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00147-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76489956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Doping mechanisms and electrical properties of La-doped BaTiO3 ceramics la掺杂BaTiO3陶瓷的掺杂机理及电学性能
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00128-3
Finlay D Morrison, Derek C Sinclair, Anthony R West
{"title":"Doping mechanisms and electrical properties of La-doped BaTiO3 ceramics","authors":"Finlay D Morrison,&nbsp;Derek C Sinclair,&nbsp;Anthony R West","doi":"10.1016/S1466-6049(01)00128-3","DOIUrl":"10.1016/S1466-6049(01)00128-3","url":null,"abstract":"<div><p>The electrical properties of Ba<sub>1−<em>x</em></sub>La<sub><em>x</em></sub>Ti<sub>1−<em>x</em>/4</sub>O<sub>3</sub> ceramics where <em>x</em><span>≤0.20 were investigated by impedance spectroscopy after heat treatment in O</span><sub>2</sub>, Ar and air at 1350°C. Samples heated in O<sub>2</sub> were electrically insulating with very high maximum permittivities, ∼25,000 at <em>x</em>=0.06 and exhibited significant ‘relaxor-type’ behaviour at <em>x</em>=0.10. Samples heated in Ar were semiconducting for all <em>x</em> whereas air heated samples were electrically inhomogeneous. Semiconductivity in these materials is attributed to oxygen loss as opposed to La-donor doping.</p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1205-1210"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00128-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79116707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 121
Hydroxyapatite coatings obtained by the thermal activation of polymeric sols 羟基磷灰石涂料是由聚合物溶胶热活化得到的
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00112-X
Miguel Manso , Michel Langlet , Carmen Jiménez , J.M Martı́nez-Duart
{"title":"Hydroxyapatite coatings obtained by the thermal activation of polymeric sols","authors":"Miguel Manso ,&nbsp;Michel Langlet ,&nbsp;Carmen Jiménez ,&nbsp;J.M Martı́nez-Duart","doi":"10.1016/S1466-6049(01)00112-X","DOIUrl":"10.1016/S1466-6049(01)00112-X","url":null,"abstract":"<div><p><span>Hydroxyapatite (HAP) coatings have been developed to exploit the bioactive properties of this material which are related to its specific composition and crystalline structure. Carbonated HAP films were obtained on (100)/Silicon substrates by the thermal activation of a polymeric sol of selected stoichiometry utilising an aerosol–gel reactor. This technique provides several advantages in the control of the morphology and thickness of the coatings. Sintering temperatures reaching 1000°C were applied to enhance the crystallinity and purity of the films. The samples have been characterised by the use of </span>FTIR, XRD and SEM. Measurements of the stoichiometry, crystallinity, microstructure and morphology of the coatings prove the formation of HAP films appropriate for several bioactive applications.</p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1153-1155"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00112-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81711350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Crystallographic control of the barrier structure in zinc oxide varistors 氧化锌压敏电阻中势垒结构的晶体学控制
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00109-X
C Leach
{"title":"Crystallographic control of the barrier structure in zinc oxide varistors","authors":"C Leach","doi":"10.1016/S1466-6049(01)00109-X","DOIUrl":"10.1016/S1466-6049(01)00109-X","url":null,"abstract":"<div><p><span>Scanning electron microscope (SEM) based remote electron beam induced current (REBIC) microscopy has been used to investigate the electrical characteristics of individual grain boundaries in a zinc oxide based varistor. Although some grain boundaries showed the expected ‘bright and dark’ contrast consistent with symmetrical, opposed, electric fields on either side of a charged grain boundary, the majority of interfaces are electrically asymmetric showing only </span><em>either</em> bright <em>or</em> dark contrast. In these cases, the application of an external voltage bias to the grain boundary of several ten’s of millivolts is necessary to restore a symmetrical barrier structure. The orientations of grains on either side of each grain boundary were determined using electron backscattered pattern (EBSP) analysis and the grain boundary plane orientation was calculated by observing the lateral shift of the grain boundary EBIC contrast peak with SEM beam voltage and, hence, penetration depth. It was found that the electrical asymmetry is governed by the orientations of the grain boundary planes on either side of the interface, demonstrating some crystallographic control of the barrier structure.</p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1117-1119"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00109-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83978505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Theoretical and experimental investigations on elastic properties of substoichiometric titanium nitrides: influence of lattice vacancies 亚化学计量氮化钛弹性性能的理论与实验研究:晶格空位的影响
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00151-9
M Guemmaz , A Mosser , R Ahuja , J.C Parlebas
{"title":"Theoretical and experimental investigations on elastic properties of substoichiometric titanium nitrides: influence of lattice vacancies","authors":"M Guemmaz ,&nbsp;A Mosser ,&nbsp;R Ahuja ,&nbsp;J.C Parlebas","doi":"10.1016/S1466-6049(01)00151-9","DOIUrl":"10.1016/S1466-6049(01)00151-9","url":null,"abstract":"<div><p>Substoichiometric titanium nitrides<span><span> have been synthesized by multiple energy ion implantation at the surface of pure titanium. Elastic properties have been studied by nanoindentation. Self consistent Full Potential Linear Muffin Tin Orbital (FP-LMTO) calculation with empty spheres in place of the missing nitrogen atoms gives the corresponding </span>bulk modulus<span> and lattice parameter values. The results, both experimentally and theoretically, show the same evolution of the lattice parameter and the bulk modulus, as a function of vacancy concentration. The agreement between experimental and theoretical values is discussed in relation with the vacancy effect.</span></span></p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1319-1321"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00151-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90287268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Author Index Volume 3 作者索引第3卷
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00204-5
{"title":"Author Index Volume 3","authors":"","doi":"10.1016/S1466-6049(01)00204-5","DOIUrl":"https://doi.org/10.1016/S1466-6049(01)00204-5","url":null,"abstract":"","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages I-XIX"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00204-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138344984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Colloidal processing of cordierite-based glass-ceramics 堇青石基微晶玻璃的胶体加工
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00152-0
Sen Mei, Juan Yang, J.M.F Ferreira
{"title":"Colloidal processing of cordierite-based glass-ceramics","authors":"Sen Mei,&nbsp;Juan Yang,&nbsp;J.M.F Ferreira","doi":"10.1016/S1466-6049(01)00152-0","DOIUrl":"10.1016/S1466-6049(01)00152-0","url":null,"abstract":"<div><p>In this work, five levels of dispersant concentrations were used to prepare cordierite-based glass ceramic suspensions with different solid loadings. The Bingham model could be used to characterise rheological behaviour of 50 wt.% solid loaded suspensions, whereas it gradually changed to shear thickening at higher dispersant concentrations as the solid loadings further increased (60, 70 wt.%). A critical dispersant concentration, which provided the lowest stress, was obtained at 0.6 wt.% for Dolapix. The particle size ratio between cordierite and glass powder also plays an important role in rheological properties of the suspensions and green densities. The green density increased as the solid loadings in the suspensions further increased.</p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1249-1252"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00152-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80411460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Epitaxial perovskite rare-earth nickelates and their heterostructures with CMR manganites 外延钙钛矿型稀土镍酸盐及其与CMR锰矿的异质结构
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00115-5
M.A Novojilov , O.Yu Gorbenko , I.V Nikulin , I.E Graboy , A.R Kaul , N.A Babushkina , L.M Belova
{"title":"Epitaxial perovskite rare-earth nickelates and their heterostructures with CMR manganites","authors":"M.A Novojilov ,&nbsp;O.Yu Gorbenko ,&nbsp;I.V Nikulin ,&nbsp;I.E Graboy ,&nbsp;A.R Kaul ,&nbsp;N.A Babushkina ,&nbsp;L.M Belova","doi":"10.1016/S1466-6049(01)00115-5","DOIUrl":"10.1016/S1466-6049(01)00115-5","url":null,"abstract":"<div><p><span><span>Thin films of rare-earth </span>nickelates RNiO</span><sub>3</sub><span><span> (R=Pr, Nd, Sm, Gd) were prepared under a reduced oxygen pressure of &lt;0.02 bar by MOCVD on perovskite substrates. The film–substrate </span>lattice mismatch is critical for the epitaxial stabilization of RNiO</span><sub>3</sub>. Increase of the lattice mismatch or film thickness results in the deposition of rare-earth oxides and NiO instead of RNiO<sub>3</sub>. The transport properties of the films on LaAlO<sub>3</sub> were similar to those of the bulk material of the same composition under an applied pressure of 9 kbar. The properties of RNiO<sub>3</sub> films with a sharp metal-to-insulator transition can be effectively tuned by the lattice strain.</p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1165-1168"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00115-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80702195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Preparation and characterisation of NiMn2O4 films NiMn2O4薄膜的制备与表征
International Journal of Inorganic Materials Pub Date : 2001-12-01 DOI: 10.1016/S1466-6049(01)00131-3
R. Schmidt, A.W. Brinkman
{"title":"Preparation and characterisation of NiMn2O4 films","authors":"R. Schmidt,&nbsp;A.W. Brinkman","doi":"10.1016/S1466-6049(01)00131-3","DOIUrl":"10.1016/S1466-6049(01)00131-3","url":null,"abstract":"<div><p><span>Thin films of NiMn</span><sub>2</sub>O<sub>4</sub><span> NTC thermistor material were produced by electron-beam-evaporation from phase pure NiMn</span><sub>2</sub>O<sub>4</sub> source material. The films were characterised using SEM, EDAX, XRD and an Alpha-Step stylus profileometer. Resistance vs. temperature characteristics were obtained over a wide range of temperature and suggested that the conduction mechanism was by variable range hopping. A theoretical model for the thickness profile of the films was derived and comparison of theory with experimental findings showed good agreement.</p></div>","PeriodicalId":100700,"journal":{"name":"International Journal of Inorganic Materials","volume":"3 8","pages":"Pages 1215-1217"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1466-6049(01)00131-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81382290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 33
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