Pub Date : 2019-09-01DOI: 10.13036/17533562.60.4.001
A. A. El-Moneim
{"title":"Analysis and prediction of elastic moduli and Poisson’s ratio in Li2O–B2O3–V2O5 glasses under the substitution of V2O5 for B2O3","authors":"A. A. El-Moneim","doi":"10.13036/17533562.60.4.001","DOIUrl":"https://doi.org/10.13036/17533562.60.4.001","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"26 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89546652","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}
Pub Date : 2019-09-01DOI: 10.13036/17533562.60.4.007
T. Volotinen, J. M. Parker, D. B. Hollis, G. Niklasson
Four reflection loss correction methods have been investigated, theoretically and by analysing the measured absorbance spectra for eight samples prepared from the same Cu-doped soda–lime–silica gla ...
{"title":"Reflection loss correction method for accurate absorbance spectrum analysis of coloured glasses","authors":"T. Volotinen, J. M. Parker, D. B. Hollis, G. Niklasson","doi":"10.13036/17533562.60.4.007","DOIUrl":"https://doi.org/10.13036/17533562.60.4.007","url":null,"abstract":"Four reflection loss correction methods have been investigated, theoretically and by analysing the measured absorbance spectra for eight samples prepared from the same Cu-doped soda–lime–silica gla ...","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"32 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77896240","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}
Pub Date : 2019-09-01DOI: 10.13036/17533562.60.4.049
M. Krzhizhanovskaya, R. Bubnova, S. Filatov
{"title":"Crystalline borosilicates of alkali and alkaline earth metals: hierarchy, fundamental building blocks and thermal expansion","authors":"M. Krzhizhanovskaya, R. Bubnova, S. Filatov","doi":"10.13036/17533562.60.4.049","DOIUrl":"https://doi.org/10.13036/17533562.60.4.049","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"76 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78289931","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}
Pub Date : 2019-06-28DOI: 10.13036/17533562.60.3.017
P. Skrdla, P. Floyd, P. Dell'orco
{"title":"Relaxation kinetics in fragile glass-forming liquids: a dispersive kinetics view of Vogel–Tammann–Fulcher behaviour in o-terphenyl","authors":"P. Skrdla, P. Floyd, P. Dell'orco","doi":"10.13036/17533562.60.3.017","DOIUrl":"https://doi.org/10.13036/17533562.60.3.017","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"3 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90142826","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}
Pub Date : 2019-06-28DOI: 10.13036/17533562.60.3.022
Shangcong Cheng
{"title":"Response to the letter ‘Further comments on the Cheng nano-flake model for the structure of vitreous silica’","authors":"Shangcong Cheng","doi":"10.13036/17533562.60.3.022","DOIUrl":"https://doi.org/10.13036/17533562.60.3.022","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"84 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87811877","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}
Pub Date : 2019-06-28DOI: 10.13036/17533562.60.3.024
M. Konon, S. Stolyar, I. Polyakova, I. Drozdova, E. Semenova, T. Antropova
{"title":"Phase separated and porous glasses in the Na2O–B2O3–SiO2–Fe2O3 glass forming system","authors":"M. Konon, S. Stolyar, I. Polyakova, I. Drozdova, E. Semenova, T. Antropova","doi":"10.13036/17533562.60.3.024","DOIUrl":"https://doi.org/10.13036/17533562.60.3.024","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"117 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77716469","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}
Pub Date : 2019-04-17DOI: 10.13036/17533562.60.2.14026
Ł. Gołek, J. Deja, M. Sitarz
{"title":"The hydration process of alkali activated calcium aluminosilicate glasses","authors":"Ł. Gołek, J. Deja, M. Sitarz","doi":"10.13036/17533562.60.2.14026","DOIUrl":"https://doi.org/10.13036/17533562.60.2.14026","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85457231","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}
Pub Date : 2019-04-17DOI: 10.13036/17533562.60.2.012
A. A. El-Moneim
{"title":"Prediction of elastic properties in oxide glasses: extension of Abd El-Moneim and Alfifi’s approaches to lithium borovanadate glasses","authors":"A. A. El-Moneim","doi":"10.13036/17533562.60.2.012","DOIUrl":"https://doi.org/10.13036/17533562.60.2.012","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"26 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74173232","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}
Pub Date : 2019-04-17DOI: 10.13036/17533562.60.2.001
A. Wright
{"title":"Density fluctuations in vitreous SiO2 and GeO2","authors":"A. Wright","doi":"10.13036/17533562.60.2.001","DOIUrl":"https://doi.org/10.13036/17533562.60.2.001","url":null,"abstract":"","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"32 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87292930","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}
Pub Date : 2019-04-17DOI: 10.13036/17533562.60.2.041
R. Balzer, H. Behrens, S. Reinsch, M. Fechtelkord
Dissolved water has major impact on the physical and chemical properties of phosphate glasses. In the present study we have investigated the structural response to water incorporation for glasses in the system Li2O–MgO–Al2O3–P2O5. Glasses containing 0–8 wt% H2O were synthesised at 500 MPa confining pressure in internally heated gas pressure vessels at 1323 K (LMP, Al-poor glass) and 1423 K (LMAP, Al-enriched glass). Water contents of glasses were determined by pyrolysis and subsequent Karl-Fischer titration (KFT) and/or by infrared spectroscopy. Density varies nonlinearly with water content implying large structural changes when adding up to 2 wt% H2O to the dry glass. Glass Transition temperatures measured by differential thermal analysis (DTA) continuously decrease with water content. The trend can be explained by depolymerisation of the phosphate network. Near-infrared spectroscopy shows that even in Al poor glasses only a minority of dissolved water is present as H2O molecules, but the largest amount is present as OH Groups formed by hydrolysis of P–O–P bonds. The network is stabilised by aluminium which is predominantly six-coordinated in these glasses as shown by 27Al MAS NMR spectroscopy. With increase of Al in the glasses, breaking up of the Phosphate network through hydrolysis is depressed, i.e. much lower OH Contents are formed at same total water content. Network depolymerisation upon addition of H2O is evident also from 31P MAS NMR spectroscopy. While Phosphate tetraheda are crosslinked by two to three bridging oxygen in dry glasses, diphosphate Groups are dominant in glasses containing 8 wt% H2O.
溶解的水对磷酸盐玻璃的理化性能有很大的影响。在本研究中，我们研究了Li2O-MgO-Al2O3-P2O5体系中玻璃对水掺入的结构响应。在1323 K (LMP，贫铝玻璃)和1423 K (LMAP，富铝玻璃)的内加热气体压力容器中，在500 MPa围压下合成了含0-8 wt% H2O的玻璃。通过热解和随后的卡尔-菲舍尔滴定法(KFT)和/或红外光谱法测定玻璃的含水量。密度随含水量非线性变化，这意味着当向干玻璃中加入2wt %的水时，会发生很大的结构变化。差热分析(DTA)测定的玻璃化温度随着水的含量不断降低。这种趋势可以用磷酸盐网络的解聚合来解释。近红外光谱分析表明，即使在贫铝玻璃中，也只有少数溶解的水以H2O分子的形式存在，而大部分以P-O-P键水解形成的OH基团的形式存在。该网络由铝稳定，铝在这些玻璃中主要是六配位的，如27Al MAS NMR所示。随着玻璃中Al含量的增加，磷酸盐网络的水解分解被抑制，即在相同的总含水量下形成更低的OH含量。加入水后的网络解聚也明显从31P MAS核磁共振光谱。磷酸四面体在干燥玻璃中由两到三个桥接氧交联，而二磷酸基团在含8wt % H2O的玻璃中占主导地位。
{"title":"Structural investigation of hydrous phosphate glasses","authors":"R. Balzer, H. Behrens, S. Reinsch, M. Fechtelkord","doi":"10.13036/17533562.60.2.041","DOIUrl":"https://doi.org/10.13036/17533562.60.2.041","url":null,"abstract":"Dissolved water has major impact on the physical and chemical properties of phosphate glasses. In the present study we have investigated the structural response to water incorporation for glasses in the system Li2O–MgO–Al2O3–P2O5. \u0000Glasses containing 0–8 wt% H2O were synthesised at 500 MPa confining pressure in internally heated gas pressure vessels at 1323 K (LMP, Al-poor glass) and 1423 K (LMAP, Al-enriched glass). Water contents of glasses were determined by pyrolysis and subsequent Karl-Fischer titration (KFT) and/or by infrared spectroscopy. Density varies nonlinearly with water content implying large structural changes when adding up to 2 wt% H2O to the dry glass. Glass Transition temperatures measured by differential thermal analysis (DTA) continuously decrease with water content. The trend can be explained by depolymerisation of the phosphate network. Near-infrared spectroscopy shows that even in Al poor glasses only a minority of dissolved water is present as H2O molecules, but the largest amount is present as OH Groups formed by hydrolysis of P–O–P bonds. The network is stabilised by aluminium which is predominantly six-coordinated in these glasses as shown by 27Al MAS NMR spectroscopy. With increase of Al in the glasses, breaking up of the Phosphate network through hydrolysis is depressed, i.e. much lower OH Contents are formed at same total water content. \u0000Network depolymerisation upon addition of H2O is evident also from 31P MAS NMR spectroscopy. While Phosphate tetraheda are crosslinked by two to three bridging oxygen in dry glasses, diphosphate Groups are dominant in glasses containing 8 wt% H2O.","PeriodicalId":49696,"journal":{"name":"Physics and Chemistry of Glasses-European Journal of Glass Science and Technology Part B","volume":"107 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2019-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78778938","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}
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