Tian Hu , Wenyan Zheng , Zhiyu Liu , Jiannan Jia , Xiuxia Xu , Qiang Xu , Xvsheng Qiao , Xianping Fan
{"title":"Strategies to host silver quantum clusters in borosilicate glass: How to mutually fulfill PL efficiency and chemical stability?","authors":"Tian Hu , Wenyan Zheng , Zhiyu Liu , Jiannan Jia , Xiuxia Xu , Qiang Xu , Xvsheng Qiao , Xianping Fan","doi":"10.1016/j.nocx.2022.100132","DOIUrl":"10.1016/j.nocx.2022.100132","url":null,"abstract":"<div><p>Silver quantum clusters (Ag QCs), with broadband molecular luminescence, are stabilized in the borosilicate glasses with the [SiO<sub>4</sub>]/[BO<sub>4</sub>]<sup>−</sup>/[BO<sub>3</sub>] blended networks. The introduction of SiO<sub>2</sub> in the B<sub>2</sub>O<sub>3</sub>-Ag<sub>2</sub>O-BaO glasses induces the transformation of [BO<sub>3</sub>] to [BO<sub>4</sub>]<sup>−</sup> to prevent over-growth of Ag QCs → Ag NPs and uniformly disperse Ag QCs in glass matrix. Due to the uniformly distribution of Ag QCs, the photoluminescence (PL) quenching due to cross relaxation (CR) between Ag QCs is highly suppressed, achieving PL quantum yields (QYs) as high as 67.38%. The Ag QCs activated glass based WLEDs exhibit not only excellent chemical durability but also superior luminance performances with a color coordinate of (0.32, 0.37), a correlated color temperature (CCT) of 6030 K and a color rendering index (CRI) of 89.7. Thus, the Ag QCs activated borosilicate glasses can be considered as a new type of efficient luminescent materials for various photonic application.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100132"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000528/pdfft?md5=ea26775659194fde1c5e0bc6fdb41ccd&pid=1-s2.0-S2590159122000528-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46983559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent research on Li2O-Al2O3-SiO2 glass-ceramics for expansion of applications","authors":"Shingo Nakane","doi":"10.1016/j.nocx.2022.100121","DOIUrl":"10.1016/j.nocx.2022.100121","url":null,"abstract":"<div><p>Applications of Li<sub>2</sub>O-Al<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub> glass-ceramics (LAS GC) have been extended to electronic and optical devices and production process equipment in addition to their conventional use in cookware. For further expansion and application to new markets, we demonstrate three topics of our research on the material and production processes from viewpoint of glass phases. The first topic is spherical LAS GC powder for a filler application. It has been developed successfully, which can be prepared in a single heat treatment where spheroidizing by viscous flow and crystallization are achieved simultaneously by considering the kinetics of the two phenomena. Second, high transparent LAS GC was obtained by the composition design of the glass-matrix phase, Ti-free, or increasing Al content based on the coloration mechanism. Third, the fan shape of the feeder in our forming process has accomplished to prevent devitrification and form the largest sheet of 2200 × 2500 × 5 mm.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100121"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000413/pdfft?md5=f071ec4c6993ddfadfba78cf86bd852b&pid=1-s2.0-S2590159122000413-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47003446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jingshi Wu , Aram Rezikyan , Matthew R. Ross , Peter J. Lezzi , Jian Luo , Anping Liu
{"title":"Temperature and thermal stress analysis of ultrashort laser processed glass","authors":"Jingshi Wu , Aram Rezikyan , Matthew R. Ross , Peter J. Lezzi , Jian Luo , Anping Liu","doi":"10.1016/j.nocx.2022.100124","DOIUrl":"10.1016/j.nocx.2022.100124","url":null,"abstract":"<div><p>When glass absorbs high energy from ultrashort-pulsed lasers, a very rapid melting-cooling event occurs. Images taken by a Scanning Electron Microscope (SEM) reveal a surface feature which elucidates the glass is heated to above 2000 °C. A series of voids along the laser path is also observed and analyzed by SEM and High-angle Annular Dark-filed Scanning Transmission Electron Microscopy (HAADF-STEM). Molecular Dynamic simulation predicting observable voids in fused silica glass requires the temperature to be above 10,000 Kelvin. This suggests that the thermal effect from nonlinear absorption along cannot explain the void generation. Thermal stress analysis based on three different types of glasses revealed that stress generated by laser heating is highly correlated to thermal expansion coefficient. Such thermal stress may be a key factor for laser cutting.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100124"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000449/pdfft?md5=9cf67958840597582bf67f1c3b33baff&pid=1-s2.0-S2590159122000449-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48703659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of boron oxide on the structure, properties and bioactivities of bioactive glasses: A review","authors":"Xiaonan Lu , Jincheng Du","doi":"10.1016/j.nocx.2022.100118","DOIUrl":"10.1016/j.nocx.2022.100118","url":null,"abstract":"<div><p>Borate and boron oxide containing bioactive glasses have drawn attention because of their unique properties and potential biomedical applications. In this paper, we review recent advances in understanding of boron oxide addition on the structures and properties of bioactive glasses from both experimental and simulation studies. After reviewing the synthesis, characterization and applications of these novel bioactive glasses, recent developments of simulation methodologies including the interatomic potentials to model boron oxide containing bioactive glasses are reviewed. Effect of boron oxide to silica substitution on a range of properties such as density, glass transition temperature, coefficient of thermal expansion, diffusion and mechanical properties, as well as crystallization behavior, both from our own studies and those from literature, are summarized. Furthermore, influence of boron oxide on <em>in vitro</em> bioactivity in several bioactive glass series are reviewed and discussed, emphasizing the importance of <em>in vitro</em> testing conditions on the bioactivity evaluation. Lastly, an outlook of future directions of the field has been provided.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100118"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000383/pdfft?md5=7989ed7811cd4a07f3b8bc0cc5504bc4&pid=1-s2.0-S2590159122000383-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45644715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Kinetic model for prediction of subcritical crack growth, crack tip relaxation, and static fatigue threshold in silicate glass","authors":"S.J. Grutzik , K.T. Strong , J.M. Rimsza","doi":"10.1016/j.nocx.2022.100134","DOIUrl":"10.1016/j.nocx.2022.100134","url":null,"abstract":"<div><p>Prediction of brittle fracture of amorphous oxide glasses continues to be a challenge due to the existence of multiple fracture mechanisms that vary with loading conditions. To address this challenge, we present a model for all three regimes of crack growth in glasses. Regimes I and III are controlled by Arrhenius processes while regime II is transport controlled along with a simple Arrhenius model for viscoelastic stress relaxation. Through dimensional arguments and physical reasoning, we propose a single mechanism which underlies both regime III subcritical crack growth and near-crack-tip viscoelastic relaxation. By combining the subcritical crack growth and viscoelastic models we obtain a prediction for a threshold stress intensity, <span><math><mrow><msub><mrow><mi>K</mi></mrow><mrow><mi>th</mi></mrow></msub></mrow></math></span>, below which stresses around the crack relax faster than it propagates. For stress intensity <span><math><mrow><msub><mrow><mi>K</mi></mrow><mrow><mi>I</mi></mrow></msub><mo><</mo><msub><mrow><mi>K</mi></mrow><mrow><mi>th</mi></mrow></msub></mrow></math></span>, no subcritical crack growth is predicted to occur, allowing for the design of stable glass systems. The prediction is compared to measured subcritical fracture threshold data for soda-lime silica glasses.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000541/pdfft?md5=cc8aaf98da74485f1c5400c51cd37481&pid=1-s2.0-S2590159122000541-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45704787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Deformation behaviors of a model metallic glass under 3-D nanoindentation studied in molecular dynamics simulation","authors":"Haidong Liu, Yunfeng Shi, Liping Huang","doi":"10.1016/j.nocx.2022.100130","DOIUrl":"10.1016/j.nocx.2022.100130","url":null,"abstract":"<div><p>In recent years, molecular dynamics (MD) simulation has been used to study the deformation behaviors of glass under nanoindentation, mainly using ideal geometries like a spherical indenter or a 2.5-D sample geometry to simplify post-analysis and save computational costs. To generate stress/strain fields that can be directly compared with experiments, we developed a 3-D nanoindentation protocol in this work to study the deformation behaviors of a model metallic glass under sharp contact loading in MD. Our studies show that the indenter sharpness controls the shear band formation, and the interaction between shear bands dictates the crack initiation in the model metallic glass. Shear bands and residual stress fields in the model metallic glass from our simulated nanoindentation tests are consistent with observations in soda-lime silicate (SLS) glass from the instrumented indentation in experiments, as both of them favor shear deformation under sharp contact loading.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100130"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000504/pdfft?md5=a8ef7b2acf61884b22048e35a4b66436&pid=1-s2.0-S2590159122000504-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44746012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jianchao Lu , Zhitao Shan , Jun Zhang , Yucai Su , Kangfeng Yi , Yanfei Zhang , Qiuju Zheng
{"title":"Mechanical properties of mixed modified oxide glasses","authors":"Jianchao Lu , Zhitao Shan , Jun Zhang , Yucai Su , Kangfeng Yi , Yanfei Zhang , Qiuju Zheng","doi":"10.1016/j.nocx.2022.100125","DOIUrl":"10.1016/j.nocx.2022.100125","url":null,"abstract":"<div><p>Mixed modifier effect refers to the nonlinear variations of glass properties when mixing different types of modifier ions. The effect plays an important role since it can be applied to design glasses with controlled properties and it is also related to the raw materials selection. In this review, we will summarize the recent important progress on the mixed modifier effect in oxide glasses. The effect has been found in various properties, but we mainly focus on glass transition temperature (<em>T</em><sub>g</sub>), hardness (<em>H</em>), elastic modulus (<em>E</em>), and coefficient of thermal expansion (<em>α</em>) since these properties are critical in glass manufacture and products performance. Different properties exhibit unique features and many theories are proposed to account for the effect. The compositional dependence of these properties is reviewed and the theories proposed to explain this effect are discussed. Moreover, we suggest some future directions for the further work on the mixed modifier effect.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100125"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000450/pdfft?md5=573ec95a38795290c65e6f17f8ceaa49&pid=1-s2.0-S2590159122000450-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46114414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Viscoelastic behavior and fragility of Se-deficient chalcogenide liquids in As-P-Se system","authors":"Bing Yuan , Bruce G. Aitken , Sabyasachi Sen","doi":"10.1016/j.nocx.2022.100128","DOIUrl":"10.1016/j.nocx.2022.100128","url":null,"abstract":"<div><p>The viscoelastic behavior of supercooled Se-deficient liquids in the series As<sub><em>x</em></sub>Se<sub><em>100-x</em></sub> (40 ≤ <em>x</em> ≤ 60) and P<sub><em>x</em></sub>As<sub><em>4–x</em></sub>Se<sub><em>3</em></sub> (0 ≤ <em>x</em> ≤ 2.8) are studied using parallel plate rheometry. The compositional variations in the viscosity and fragility of these liquids are shown to be consistent with the corresponding structural evolution. While the shear relaxation of As<sub><em>x</em></sub>Se<sub><em>100-x</em></sub> liquids with 40 ≤ <em>x</em> ≤ 50 is associated with the dynamics of As<img>Se bond scission/renewal, the As-rich liquids with <em>x</em> ≥ 55 are found to display an additional low-frequency process, which is related to a cooperative interconversion between molecular and network structural moieties. A similar behavior is also exhibited by the As-rich liquids in the P<sub><em>x</em></sub>As<sub><em>4–x</em></sub>Se<sub><em>3</em></sub> series. In contrast, the P-rich liquids characterized by high molecule content display a power-law relaxation behavior resulting from a rather broad distribution of relaxation timescales associated with various dynamical modes of single molecules and molecular clusters.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100128"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000486/pdfft?md5=efa9359c051c670894d47f14ed09b50e&pid=1-s2.0-S2590159122000486-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47130856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Alkali and alkaline earth zinc and lead borate glasses: Structure and properties","authors":"Lina Heuser, Marianne Nofz","doi":"10.1016/j.nocx.2022.100109","DOIUrl":"10.1016/j.nocx.2022.100109","url":null,"abstract":"<div><p>Low melting Li<sub>2</sub>O-PbO-B<sub>2</sub>O<sub>3</sub>, Me<sub>2</sub>O-ZnO-B<sub>2</sub>O<sub>3</sub>, Me = Li, Na, K, Rb and CaO-ZnO-B<sub>2</sub>O<sub>3</sub> glasses were studied with Raman and infrared spectroscopies to advance the structural understanding of zinc borate glasses as potential candidates for substitution of lead containing glasses.</p><p>Although the effect of type of alkali ions on the number (N<sub>4</sub>) of fourfold coordinated boron (B<sub>4</sub>) in the glasses is small, the alkali ions direct the type of borate groups, i.e., pentaborate in lithium, sodium, and calcium zinc borate glasses, as well as diborate in potassium and rubidium containing ones. Both groups were simultaneously found in Li<sub>2</sub>O-PbO-B<sub>2</sub>O<sub>3</sub>. Alkali ions are mainly responsible for the formation of B<sub>4</sub>-units and metaborate. Zinc ions favorably compensate non-bridging oxygen and partially form ZnO<sub>4</sub>.</p><p>With decreasing N<sub>4</sub> and field strength of the alkali ions the atomic packing density, glass transition temperature and Young's Modulus also decrease. The coefficient of thermal expansion increases with decreasing N<sub>4</sub>.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"15 ","pages":"Article 100109"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000292/pdfft?md5=763134075692b016c547e66845d7d4fb&pid=1-s2.0-S2590159122000292-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43892408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Atomistic to continuum simulations of fracture and damage evolutions in oxide glass and glass-ceramic materials: A critical review","authors":"Shingo Urata , Sayako Hirobe , Kenji Oguni , Shaofan Li","doi":"10.1016/j.nocx.2022.100102","DOIUrl":"10.1016/j.nocx.2022.100102","url":null,"abstract":"<div><p>Fracture and damage ascribed to the intrinsic brittleness of amorphous oxide glasses are crucial problems for the daily use of glass products. Because the latest developments in glass and glass-ceramics technologies have further broadened their applications, the safety issues become increasingly important. Computational modeling and simulation are now indispensable in the design and analysis of glass quality and safety. This review, therefore, provides an overview of the state-of-the-art fracture modeling/simulation techniques ranging from atomistic scale to continuum scale. In addition to the fundamental theories, typical and recent studies using a variety of continuum methods are introduced. This review also covers the application examples of classical molecular dynamics (CMD) simulations and reactive CMD simulations to investigate the fracture and damage evolutions in glass and glass-ceramics. Advanced multiscale modeling techniques that bridge atomistic and continuum method are also introduced for modeling amorphous materials.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"15 ","pages":"Article 100102"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S259015912200022X/pdfft?md5=b3f152a816e70cb4026c5169363bba90&pid=1-s2.0-S259015912200022X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46455291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}