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Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B最新文献

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Effect of the Ba/K ratio on structural, dielectric and energy storage properties of BaO–K2O–TiO2–P2O5 glass-ceramics Ba/K比对bao - k20 - tio2 - p2o5微晶玻璃结构、介电和储能性能的影响
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-12-12 DOI: 10.13036/17533562.61.6.015
E. Haily, L. Bih, A. Bouari, A. Lahmar, M. Marssi, B. Manoun
{"title":"Effect of the Ba/K ratio on structural, dielectric and energy storage properties of BaO–K2O–TiO2–P2O5 glass-ceramics","authors":"E. Haily, L. Bih, A. Bouari, A. Lahmar, M. Marssi, B. Manoun","doi":"10.13036/17533562.61.6.015","DOIUrl":"https://doi.org/10.13036/17533562.61.6.015","url":null,"abstract":"xBaO–(20−x)K2O–30TiO2–50P2O5 with (0≤x≤20 mol%) glasses were successfully elaborated by the melt quenching while their related glass-ceramics were developed by controlled crystallisation. Density and molar volume measurements, differential thermal analysis and Raman spectroscopy were carried out to examine the glassy structure, the results revealed that the addition of BaO increases the reticulation and reinforces the glass network by the creation of strengthened linkages. X-ray diffraction has identified the formation of MTi2(PO4)3 with M=(K, Ba0·5) in all the glass-ceramics (GC) and the precipitation of a secondary BaTiP2O8 phase when x increase beyond 10 mol%. The dielectric properties of the glass-ceramics were studied by impedance spectroscopy, it showed that the addition of BaO induces an enhancement of both thermal and frequency stability of the dielectric parameters (εr and tanδ). The glass-ceramic with 5 mol% of BaO GC-(x=5) presents the highest dielectric constant and the lowest dielectric loss. The P-E hysteresis loops were recorded at room temperature and the energy storage parameters of the glass-ceramics were determined. These parameters were significantly improved by the increase of the BaO content and the optimum parameters were obtained for GC-(x=5). The dielectric and energy storage parameters were discussed according to the structure data.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79524918","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: 3
The structure of oxide glasses studied by high-energy x-ray diffraction 用高能x射线衍射研究氧化玻璃的结构
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-12-12 DOI: 10.13036/17533562.61.6.KOHARA
S. Kohara, Jasri, N. Umesaki, H. Ohno, K. Suzuya, I. Sakai, Jaeri
{"title":"The structure of oxide glasses studied by high-energy x-ray diffraction","authors":"S. Kohara, Jasri, N. Umesaki, H. Ohno, K. Suzuya, I. Sakai, Jaeri","doi":"10.13036/17533562.61.6.KOHARA","DOIUrl":"https://doi.org/10.13036/17533562.61.6.KOHARA","url":null,"abstract":"The use of high‑energy x‑ray diffraction techniques with the latest generation synchrotron sources has created new approaches to study quantitatively the structure of noncrystalline materials. Recently, this technique has been combined with neutron diffraction at pulsed source to provide more detailed and reliable structural information not previously available. This article reviews and summarises recent results obtained from the high energy x‑ray diffraction on several oxide glasses, SiO2, B2O3 and PbSiO3, using bending magnet beamlines at SPring‑8. In particular, it addresses the structural models of the oxide glasses obtained by the reverse Monte Carlo (RMC) modelling technique using both the high energy x‑ray and neutron diffraction data.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74589810","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
XAFS studies of glass structure 玻璃结构的XAFS研究
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-12-12 DOI: 10.13036/17533562.61.6.DALBA
G. Dalba
{"title":"XAFS studies of glass structure","authors":"G. Dalba","doi":"10.13036/17533562.61.6.DALBA","DOIUrl":"https://doi.org/10.13036/17533562.61.6.DALBA","url":null,"abstract":"X-ray absorption fine structure (XAFS) spectroscopy has become one of the most important techniques to characterise the local coordination of specific atomic species present in condensed matter. The possibility of investigating the structure of noncrystalline materials has made XAFS very attractive for the study of the short range structure of the glassy state. The XAFS acronym denotes the structure present above the x-ray absorption edges; such a structure is distinguished as x-ray absorption near edge structure (XANES) and extended x-ray absorption fine structure (EXAFS). XANES carries information on the atomic arrangement around the absorbing species: distances and bonding angles. XANES also provides information on the electronic states in the proximity of the conduction band: different chemical environments may be identified from known features in the spectrum. EXAFS provides information on the average distance and radial distribution function of the nearest neighbours of the absorbing species. In the last decade, the enormous progress of experimental techniques and the excellent quality of experimental spectra, consequent to the development of the synchrotron radiation facilities, have stimulated the evolution of the XAFS theory and analysis procedures. This paper is a survey on the theoretical development of XAFS and on the methods for determining the short range information in disordered materials. Applications of XAFS to some vitreous systems are reported.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80467855","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
Letter to the Editor: The extraction of atomic co-ordination numbers from x-ray diffraction data for network glasses 致编者信:从网络玻璃的x射线衍射数据中提取原子配位数
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-02-21 DOI: 10.13036/17533562.61.1.016
A. Wright
{"title":"Letter to the Editor: The extraction of atomic co-ordination numbers from x-ray diffraction data for network glasses","authors":"A. Wright","doi":"10.13036/17533562.61.1.016","DOIUrl":"https://doi.org/10.13036/17533562.61.1.016","url":null,"abstract":"It has been demonstrated that both the detailed electron distributions of the constituent atoms/ions and non-Gaussian Gaussian peaks in T(r) can seriously limit the accuracy of co-ordination numbers extracted from x-ray diffraction data, whether the fit is performed in real or reciprocal space. In general, however, it is preferable to perform the fit in real space, where differences in shape between the experimental and fitted peaks are much more obvious, together with the effect of any experimental uncertainties, as represented by the noise in the resulting correlation function in the region below the first true peak. Note, also, that in reciprocal space the effects of a non-Gaussian peak shape on the extrapolation of the sinusoidal envelope to zero Q, from a high-Q fit to the interference function, Qi(Q), apply equally to neutron diffraction data, similarly limiting the accuracy of the resulting co-ordination numbers.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85842150","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
Corrosion resistance of CaO–Al2O3–SiO2 glasses used for flame spraying on concrete 混凝土火焰喷涂用CaO-Al2O3-SiO2玻璃的耐腐蚀性能
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-02-21 DOI: 10.13036/17533562.61.1.05
Felix Eiwen, J.-H. Pfeiler, C. Roos
{"title":"Corrosion resistance of CaO–Al2O3–SiO2 glasses used for flame spraying on concrete","authors":"Felix Eiwen, J.-H. Pfeiler, C. Roos","doi":"10.13036/17533562.61.1.05","DOIUrl":"https://doi.org/10.13036/17533562.61.1.05","url":null,"abstract":"Concrete components can severely suffer from corrosion during their service lifetime. To achieve higher durability, glass coatings can be applied onto the concrete surface for protection purposes. Current solutions for protection measures are either sticking thin glass panes onto the concrete or applying plastic layers using flame spraying. The aim of this work was to develop an optimised glass composition for protective layers, in order to be suitable for flame spraying on concrete. The main advantage of this process is the deposition of continuous and joint-free glass layers onto complex geometries. Dense glass layers provide a much higher corrosion resistance and lifetime compared to polymer layers. The challenge encountered by these glass coatings resides in the contact with strong acidic fluids on one side and with the alkaline concrete on the other. Therefore, a new glass appropriate for flame spraying has been developed. The composition of this glass is cheaper compared to established reference glass products while providing comparable alkaline resistance. As the acid resistance of this glass is not sufficient, in order to ensure the desired requirements of an adequate corrosion protection, a multilayer glass coating was developed, in which the first layer consists of the alkaline-resistant CaO–Al2O3–SiO2 glass and the second layer of an acid-resistant glass.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81653057","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
Density of MgO–Al2O3–SiO2, MgO–CaO–SiO2 and MgO–CaO–Al2O3–SiO2 glasses and the structural role of MgO MgO - al2o3 - sio2、MgO - cao - sio2和MgO - cao - al2o3 - sio2玻璃的密度及MgO的结构作用
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-02-21 DOI: 10.13036/17533562.61.1.12
H. Doweidar
{"title":"Density of MgO–Al2O3–SiO2, MgO–CaO–SiO2 and MgO–CaO–Al2O3–SiO2 glasses and the structural role of MgO","authors":"H. Doweidar","doi":"10.13036/17533562.61.1.12","DOIUrl":"https://doi.org/10.13036/17533562.61.1.12","url":null,"abstract":"Density and molar volume of MgO–Al2O3–SiO2, MgO–CaO–SiO2 and MgO–CaO–Al2O3–SiO2 glasses have been correlated with the structure by following the change in type and concentration of structural units with composition. It is assumed that for (MgO+CaO)≥Al2O3 all Al atoms form AlO4 tetrahedra. The type of modified units of SiO2 (Q3 and Q2) are determined by the ratio [(MgO+CaO)−Al2O3]/SiO2. In the case of (MgO+CaO)<Al2O3, there is a fraction of Al2O3 that forms units based on the AlO3/2 formula. The entire SiO2 content would be in the form of Q4 units. Any of the structural units has its own constant volume that is independent of the type of glass. The agreement between calculated and experimental density and molar volume strongly suggests that MgO has only a modifier role in the studied glasses. Formation of assumed MgO4, MgO5 and MgO6 polyhedra can be due to change in coordination of oxygen, rather being looked as structural units.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83819330","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: 3
Structure of copper tellurite and borotellurite glasses by neutron diffraction, Raman, 11B MAS-NMR and FTIR spectroscopy 用中子衍射、拉曼、11B核磁共振和红外光谱研究了碲铜和硼碲玻璃的结构
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-02-14 DOI: 10.13036/17533562.61.1.007
Amandeep Kaur, A. Khanna, P. S. R. Krishna, A. B. Shinde, M. Gonzalez-Barriuso, F. González, Banghao Chen
{"title":"Structure of copper tellurite and borotellurite glasses by neutron diffraction, Raman, 11B MAS-NMR and FTIR spectroscopy","authors":"Amandeep Kaur, A. Khanna, P. S. R. Krishna, A. B. Shinde, M. Gonzalez-Barriuso, F. González, Banghao Chen","doi":"10.13036/17533562.61.1.007","DOIUrl":"https://doi.org/10.13036/17533562.61.1.007","url":null,"abstract":"The structure of copper tellurite and borotellurite glasses is studied by x-ray and neutron diffraction, reverse Monte Carlo (RMC) simulations, FTIR, Raman and 11B MAS-NMR spectroscopy. Copper tellurite sample with 15 mol% CuO forms precipitates of tetragonal TeO2 within the glass matrix on melt quenching. The glass forming ability of the xCuO–(100−x)TeO2 system enhances with increase in CuO concentration from 15 to 20 mol% and also with the addition of B2O3. RMC simulations on the neutron diffraction data found that the Cu–O and Te–O bond lengths are approximately at equal distances in the range: 1·96 to 1·98±0·02 Å, while the nearest O–O distance is at 2·71±0·02 Å. Neutron and Raman results on the Te–O speciation are in agreement and confirmed that the Te–O coordination decreases with an increase in CuO and B2O3 molar concentrations in the tellurite and borotellurite glasses, respectively. RMC studies found that Cu2+ has tetrahedral coordination with oxygen, as predicted by Jahn–Teller distortion and that Cu–O and Te–O structural units have very similar size and geometry. The copper tellurite glass-ceramic sample with 15 mol% CuO was heat treated and it formed crystalline precipitates of TeO2 and CuTe2O5 upon devitrification; the average Te–O coordination was significantly smaller in the glass as compared to that in the crystalline sample.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82932088","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
Structure and glass transition temperatures of tellurite glasses 碲酸盐玻璃的结构和玻璃化转变温度
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-02-14 DOI: 10.13036/17533562.61.1.11
B. Hauke, E. Barney, E. Pakhomenko, M. Jesuit, M. Packard, Á. Crego, G. Tarantino, M. Affatigato, S. Feller
{"title":"Structure and glass transition temperatures of tellurite glasses","authors":"B. Hauke, E. Barney, E. Pakhomenko, M. Jesuit, M. Packard, Á. Crego, G. Tarantino, M. Affatigato, S. Feller","doi":"10.13036/17533562.61.1.11","DOIUrl":"https://doi.org/10.13036/17533562.61.1.11","url":null,"abstract":"Tellurite glasses, made from the conditional glass former TeO2, show potential for use in optical applications. Alkali and alkaline earth tellurite glasses, along with single component, rapidly cooled, TeO2 are reported and studied here. Thermal properties of boron, potassium, lithium, sodium, rubidium, cesium, barium, and strontium tellurites were obtained via differential scanning calorimetry and related to structural changes observed using Raman spectroscopy. Additionally, coordination numbers of barium and strontium tellurites versus amount of modifier are also calculated. By understanding the thermal properties and coordination numbers of alkali and alkaline earth tellurites, the goal is to better elucidate the structure of amorphous TeO2.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86111639","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
Phase equilibria in alkali borosilicate systems: facts and fictions 碱硼硅酸盐体系的相平衡:事实与虚构
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-01-01 DOI: 10.13036/17533562.61.4.polyakova
I. Polyakova
{"title":"Phase equilibria in alkali borosilicate systems: facts and fictions","authors":"I. Polyakova","doi":"10.13036/17533562.61.4.polyakova","DOIUrl":"https://doi.org/10.13036/17533562.61.4.polyakova","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73002469","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
Sophisticated techniques for studying glass surfaces 研究玻璃表面的复杂技术
IF 0.6 4区 材料科学
Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B Pub Date : 2020-01-01 DOI: 10.13036/17533562.61.4.bange
V. Rupertus, K. Bange
{"title":"Sophisticated techniques for studying glass surfaces","authors":"V. Rupertus, K. Bange","doi":"10.13036/17533562.61.4.bange","DOIUrl":"https://doi.org/10.13036/17533562.61.4.bange","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77595189","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
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