Journal of Non-Crystalline Solids: X最新文献

{"title":"Effect of modifier cation size on the structure, properties and nickel speciation in BK7 type alkali borosilicate glasses","authors":"Brian Topper ,&nbsp;Lucas Greiner ,&nbsp;Randall E. Youngman ,&nbsp;Darren Stohr ,&nbsp;Efstratios I. Kamitsos ,&nbsp;Doris Möncke","doi":"10.1016/j.nocx.2023.100161","DOIUrl":"10.1016/j.nocx.2023.100161","url":null,"abstract":"<div><p>Alkali-borosilicate glasses 16M₂O–10B₂O₃–74SiO₂ were studied for M = Li to Cs. ¹¹B NMR showed 57% four-fold coordinated boron for Li, but 88 to 97% for M = Na to Cs. The fraction of neutral borate triangles decreases from Na to Cs. Vibrational spectroscopy shows significant non-bridging oxygen on silicate species for Li, decreasing to a low level from Na to Cs. The glass transition temperature is highest for M = Cs and correlates with increasing network connectivity. Sub-liquidus phase separation and homonuclear bonding was observed for M = Li, while M = Na to Cs show good linking of silicate with borate tetrahedra. Raman spectroscopy reveals a maximum of danburite rings for M = K, the glass with the highest packing density. Glasses doped with Ni₂O₃ changed color from yellow (Li) to purple (Na), to blue in samples of higher optical basicity (K, Rb, Cs). Tetrahedral Ni²⁺ likely coexists with trivalent nickel, Ni³⁺, in blue glasses, while higher coordinated Ni²⁺ prevails in the yellow Li-sample.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"17 ","pages":"Article 100161"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42579744","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}

{"title":"Enhancing the optical performance of oxyfluoride glass ceramics by optimizing the oxide: Fluoride ratio and crystallinity for optical refrigeration","authors":"Jyothis Thomas ,&nbsp;Thomas Meyneng ,&nbsp;Yannick Ledemi ,&nbsp;Anthony Roberge ,&nbsp;Frederic Monet ,&nbsp;Denis Seletskiy ,&nbsp;Younès Messaddeq ,&nbsp;Raman Kashyap","doi":"10.1016/j.nocx.2023.100173","DOIUrl":"10.1016/j.nocx.2023.100173","url":null,"abstract":"<div><p>The optimization of the oxide and fluoride content, crystallinity and rare earth ion concentration in oxyfluoride glass ceramics (GCs) are of great importance in obtaining high photoluminescence quantum yield (PLQY) for optical refrigeration applications. Presented herein are the important advancements in the development of a novel oxyfluoride GCS of the composition (SiO₂-Al₂O₃)_(100-a) (YLiF₄)_b: (YbF₃)_b (a = 35 and 40; in mol %, b = 1 and 2 mol%) with the corresponding parent glasses with an in-depth investigation on enhancing the optical performance for laser cooling. Depending on the oxide/fluoride (O/F) ratio and ytterbium content the internal quantum yield (iQY) varied between 70 and 99% in glass ceramics at several excitation wavelengths. The optical properties of GCs containing YLiF₄ and YF₃ nanocrystals obtained from the same initial composition (modulated by time and fusion temperature) were compared to find the optimal composition for optical refrigeration. Low fluorine content led to the generation of YLiF₄ as a major phase after ceramization and high fluorine content helped in the generation of the YF₃ phase. An increase in the radiative lifetime of YF₃ GCs compared to YLiF₄ GCs has been found to coincide with the enhancement of the PLQY, which is beneficial for laser cooling. The temperature change (ΔT) change measured using a fiber Bragg grating (FBG) in the glass and glass-ceramic samples with different pump wavelengths showed significant heat mitigation near ∼1030 nm. The observed enhanced PL intensity, iQY and lifetime after purification of YLiF₄ glasses imply that the purity of the material plays a paramount role in lowering the background absorption and enhancing the quantum yield. Looking ahead, we see a bright future for oxyfluoride GCs in applications requiring the ultimate levels of thermal, mechanical and optical performance, especially for the development of cryocooler devices, which are still technologically challenging and expensive. The usage of GCs will open up new possibilities in optical cooling technology, enabling cooling devices of any size and shape.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"17 ","pages":"Article 100173"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45713664","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}

{"title":"High-sensitivity low-energy ion scattering studies of calcium aluminosilicate glass fracture surfaces","authors":"Ryan Thorpe ,&nbsp;Nicholas J. Smith ,&nbsp;Cody V. Cushman ,&nbsp;Gabriel P. Agnello ,&nbsp;Joy Banerjee ,&nbsp;Andrew C. Antony ,&nbsp;Robert G. Manley","doi":"10.1016/j.nocx.2023.100156","DOIUrl":"10.1016/j.nocx.2023.100156","url":null,"abstract":"<div><p>Glass surfaces play a critical role in several modern applications, and open questions remain as to how the bulk composition of a multicomponent glass informs its surface composition—particularly at the outermost monolayer. This has important implications for properties such as electrostatic charging, wetting, and adhesion. Here, we apply high-sensitivity low-energy ion scattering (HS-LEIS) to examine a systematic series of ternary CaO-Al₂O₃-SiO₂ glass compositions. Analyzed are fresh fracture surfaces created under high-vacuum conditions, giving rigorous attention to peak quantification details. Results indicate that the measured surface compositions are, within uncertainty, very close to analyzed bulk compositions. This finding runs contrary to many studies showing disagreement between surface and bulk composition in glass, and possible reasons are discussed. By providing an experimental foundation from relatively ideal fracture surfaces, these results pave the way for further studies on the outermost composition of realistic glass surfaces of commercial importance.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"17 ","pages":"Article 100156"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44710411","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}

{"title":"Erratum to “Magnesium substitution in calcium and strontium fluoro-phospho-aluminosilicate glasses by multinuclear 19F, 31P, 27Al, and 29Si MAS-NMR spectroscopy” [Journal of Non Crystalline Solids:X 1C (2019) 100008]","authors":"Hiroko Kusumoto ,&nbsp;Robert G. Hill ,&nbsp;Natalia Karpukhina ,&nbsp;Robert V. Law","doi":"10.1016/j.nocx.2022.100140","DOIUrl":"10.1016/j.nocx.2022.100140","url":null,"abstract":"","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"17 ","pages":"Article 100140"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42405689","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}

{"title":"Erratum to “The irrelevance of phantom nuclei in crystallization kinetics: An integral equation approach” [Journal of Non Crystalline Solids:X 1C (2019) 100002]","authors":"Fernando C. Pérez-Cárdenas","doi":"10.1016/j.nocx.2022.100137","DOIUrl":"10.1016/j.nocx.2022.100137","url":null,"abstract":"","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"17 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43885678","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}

{"title":"Interatomic potential controlled glass forming processes of binary CuZr melts","authors":"Jinhua Yu,&nbsp;Zheng Wang,&nbsp;Wei Chu,&nbsp;Yanwen Bai,&nbsp;Lina Hu","doi":"10.1016/j.nocx.2022.100150","DOIUrl":"10.1016/j.nocx.2022.100150","url":null,"abstract":"<div><p>It has been a long-sought goal to explore the nature of amorphous formation. Investigate the role of interatomic potential can be a fascinating method to study this myth from bottom up. In this work, molecular dynamics is used to systematically study the glass forming processes of binary CuZr melts on both structural and dynamical evolutions. The strong repulsion between Cu<img>Cu and the weak repulsion between Zr<img>Zr is found to determine the structural arrangement, and then affect the type, number and spatial correlation of clusters. The difference of melt dynamics is controlled by both the steep repulsion and the anharmonic attraction of potential. The increase of the anharmonic attraction in melts can also lead to a higher shear transformation zone density in the glass. Our findings provide deeper insights into the understanding of glass-forming processes and its connection to glassy performance controlled by interatomic potential.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"17 ","pages":"Article 100150"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49561954","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}

{"title":"Phase separation in the H2O-SiO2 system","authors":"V. McGahay","doi":"10.1016/j.nocx.2023.100162","DOIUrl":"https://doi.org/10.1016/j.nocx.2023.100162","url":null,"abstract":"","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"55439274","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}

{"title":"Recent advances in Bi-doped silica-based optical fibers: A short review","authors":"A.M. Khegai ,&nbsp;S.V. Alyshev ,&nbsp;A.S. Vakhrushev ,&nbsp;K.E. Riumkin ,&nbsp;A.A. Umnikov ,&nbsp;S.V. Firstov","doi":"10.1016/j.nocx.2022.100126","DOIUrl":"10.1016/j.nocx.2022.100126","url":null,"abstract":"<div><p>This review is dedicated to recent advances in the study of bismuth-doped silica-based fibers, which are vital components for creating promising contemporary optical devices operating in the near IR region. The first part of the review summarizes features inherent to different types of bismuth active centers, such as photo- and thermally induced destruction and recovery, which are particularly of great interest with respect to the nature of luminescence in bismuth-doped fibers (BDFs). In addition, the review specifies the status and possible ways on how to improve the main characteristics of BDFs, moreover, the paper proposes the latest results regarding novel designs of BDFs and demonstrates recent progress in fiber lasers and amplifiers based on them, including bismuth lasers with record performance parameters, as well as compact and efficient broadband amplifiers. In conclusion, a short summary alongside with road-to-market perspectives of the developed active fibers are given.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100126"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000462/pdfft?md5=dd6951b47a157527f876cb8db921ca35&pid=1-s2.0-S2590159122000462-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46611983","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":"A window to the future: Frontiers of glass research from a world perspective","authors":"Jincheng Du ,&nbsp;Randall Youngman ,&nbsp;Jianrong Qiu ,&nbsp;Rui M. Almeida","doi":"10.1016/j.nocx.2022.100127","DOIUrl":"10.1016/j.nocx.2022.100127","url":null,"abstract":"","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100127"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000474/pdfft?md5=803f65905cf0fab28942dcb39c9c5c26&pid=1-s2.0-S2590159122000474-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46686291","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":"Formation of the amorphous multicomponent iron-based alloy during carbothermal reduction of Fe2O3 by waste activated sludge","authors":"Marina Vlasova,&nbsp;Pedro Antonio Márquez Aguilar,&nbsp;Jorge Luis Hernández Morelos,&nbsp;Abigail Parra Parra,&nbsp;Manuel Serrano,&nbsp;Mary Cruz Reséndiz González,&nbsp;Rene Guardian Tapia","doi":"10.1016/j.nocx.2022.100122","DOIUrl":"10.1016/j.nocx.2022.100122","url":null,"abstract":"<div><p>The process related to the formation of a multicomponent amorphous material during the reduction of α-Fe₂O₃ with the products of thermodestruction of WAS is studied using x-ray powder diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). Because WAS contains sand and clay along with its bio-components, the thermal treatment of WAS is accompanied by the formation of amorphous carbon, SiO₂, Al₂O₃, and multicomponent alloys. At <em>T</em> = 1000 °C, under oxygen-deficient conditions, iron oxide was reduced according to the scheme: α-Fe₂O₃ → (amorphous phase)_{main part} + (Fe + Fe_0.94O)(crystalline)_{little part}. The main product of the Fe₂O₃ reduction is amorphous iron with a lamellar structure. Newly formed amorphous alloys form interlayers between the iron plates and 3D inclusions. Inclusions of C, SiO₂, and Al₂O₃ agglomerates are observed between the lamellar packs. This macrostructure of the material allows slow cooling of the 3D-samples while preserving the amorphous state of iron.</p></div>","PeriodicalId":37132,"journal":{"name":"Journal of Non-Crystalline Solids: X","volume":"16 ","pages":"Article 100122"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590159122000425/pdfft?md5=74868cf8c11bf38d276053ccf670664c&pid=1-s2.0-S2590159122000425-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43125332","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}