scholarly journals The Application of Fluorinated Aromatic Dimethacrylates to Experimental Light-cured Radiopaque Composite Resin, Containing Barium-Borosilicate Glass Filler

1993 ◽  
Vol 12 (1) ◽  
pp. 1-11,89 ◽  
Author(s):  
Jiro TANAKA ◽  
Kohichi INOUE ◽  
Hiroyuki MASAMURA ◽  
Kazuyoshi MATSUMURA ◽  
Hiroyuki NAKAI ◽  
...  
Keyword(s):  
Borosilicate Glass ◽  
Composite Resin ◽  
Barium Borosilicate Glass ◽  
Glass Filler

The incorporation of Li2SO4 into barium borosilicate glass for nuclear waste immobilisation

2021 ◽  
pp. 162746
Author(s):  
Rifat Farzana ◽  
Pranesh Dayal ◽  
Inna Karatchevtseva ◽  
Zaynab Aly ◽  
Daniel J. Gregg
Keyword(s):  
Nuclear Waste ◽  
Borosilicate Glass ◽  
Barium Borosilicate Glass

Barium (Zinc) Borosilicate Sealing Glass and Joining Interface with YSZ Electrolyte and Crofer22APU Interconnect in SOFCs

2018 ◽  
Vol 283 ◽  
pp. 72-77
Author(s):  
Namthip Kingnoi ◽  
Jiratchaya Ayawanna ◽  
Nattapol Laorodphan
Keyword(s):  
Borosilicate Glass ◽  
Glass Ceramic ◽  
Joint Interface ◽  
Negative Effect ◽  
Ceramic Electrolytes ◽  
Formation Of Cracks ◽  
Barium Borosilicate Glass ◽  
Metallic Interconnects ◽  
Ysz Electrolyte ◽  
Zinc Borosilicate

This work describes the performance of two glass-ceramic compositions, BaO-SiO2-B2O3 (Barium borosilicate glass: BaBS) and BaO-ZnO-SiO2-B2O3 (Barium zinc borosilicate glass: BaBS−Zn), used for joining YSZ ceramic electrolytes and Crofer22APU metallic interconnects in solid oxide fuel cells (SOFCs) working at 800°C for 50 h. ZnO had a negative effect on the thermal expansion coefficient (TEC) value of the BaBS-Zn glass-ceramic. XRD and SEM results revealed the formation of rod-shaped barium zinc silicate crystalline phases in the BaBS-Zn glass, which was accompanied by cracks and poor adherence at the YSZ/BaBS-Zn joint interface after working at 800°C for 50 h. The formation of cracks parallel to the interface between the Crofer22APU interconnect and the BaBS-Zn glass-ceramic sealant was observed due to the severe TEC mismatch. The BaBS glass–ceramic adhered well to the YSZ electrolyte as well as the pre-oxidized Crofer22APU without cracks. Chromium oxide scale developed between the pre-oxidized Crofer22APU/BaBS glass-ceramic joint interface with increasing the pre-oxidation temperature. This study shows that BaBS glass-ceramic is more effective than BaBS-Zn as a sealant for joining YSZ electrolytes and Crofer22APU metallic interconnects in SOFCs working at 800°C for 50 h.

EPR in a barium borosilicate glass containing titanium ions

1979 ◽  
Vol 14 (9) ◽  
pp. 2215-2224 ◽  
Author(s):  
B. S. Rawal ◽  
J. T. Warden
Keyword(s):  
Borosilicate Glass ◽  
Barium Borosilicate Glass

scholarly journals Effects of Toothbrush Hardness on in vitro Wear and Roughness of Composite Resins

2013 ◽  
Vol 14 (6) ◽  
pp. 1137-1144 ◽  
Author(s):  
Hideaki Kyoizumi ◽  
Junji Yamada ◽  
Toshimitsu Suzuki ◽  
Masafumi Kanehira ◽  
Werner J Finger ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Composite Resin ◽  
Testing Machine ◽  
Composite Resins ◽  
Minor Effect ◽  
Wear Depth ◽  
Glass Fillers ◽  
Glass Filler ◽  
Representative Samples

ABSTRACT Aim To investigate and compare the effects of toothbrushes with different hardness on abrasion and surface roughness of composite resins. Materials and methods Toothbrushes (DENT. EX Slimhead II 33, Lion Dental Products Co. Ltd., Tokyo, Japan) marked as soft, medium and hard, were used to brush 10 beam-shaped specimens of each of three composites resins (Venus [VEN], Venus Diamond [VED] and Venus Pearl [VEP]; HeraeusKulzer) with standardized calcium carbonate slurry in a multistation testing machine (2N load, 60 Hz). After each of five cycles with 10k brushing strokes the wear depth and surface roughness of the specimens were determined. After completion of 50k strokes representative samples were inspected by SEM. Data were treated with ANOVA and regression analyses (p < 0.05). Results Abrasion of the composite resins increased linearly with increasing number of brushing cycles (r2 > 0.9). Highest wear was recorded for VEN, lowest for VED. Hard brushes produced significantly higher wear on VEN and VEP, whereas no difference in wear by toothbrush type was detected for VED. Significantly highest surface roughness was found on VED specimens (Ra > 1.5 μm), the lowest one on VEN (Ra < 0.3 μm). VEN specimens showed increased numbers of pinhole defects when brushed with hard toothbrushes, surfaces of VEP were uniformly abraded without level differences between the prepolymerized fillers and the glass filler-loaded matrix, VED showed large glass fillers protruding over the main filler-loaded matrix portion under each condition. Conclusion Abrasion and surface roughness of composite resins produced by toothbrushing with dentifrice depend mainly on the type of restorative resin. Hardness grades of toothbrushes have minor effects only on abrasion and surface roughness of composite resins. No relationship was found between abrasion and surface roughness. Clinical significance The grade of the toothbrush used has minor effect on wear, texture and roughness of the composite resin. How to cite this article Kyoizumi H, Yamada J, Suzuki T, Kanehira M, Finger WJ, Sasaki K. Effects of Toothbrush Hardness on in vitro Wear and Roughness of Composite Resins. J Contemp Dent Pract 2013;14(6):1137-1144.

Preparation and characterization of SO3-doped barium borosilicate glass-ceramics containing zirconolite and barite phases

2017 ◽  
Vol 43 (1) ◽  
pp. 534-539 ◽  
Author(s):  
Xin Wang ◽  
Lang Wu ◽  
Huidong Li ◽  
Jizong Xiao ◽  
Xin Cai ◽  
...  
Keyword(s):  
Borosilicate Glass ◽  
Glass Ceramics ◽  
Barium Borosilicate Glass

Analysis of barium borosilicate glass matrix for uranium determination by using ns-IR-LIBS in air and Ar atmosphere

2014 ◽  
Vol 102 (9) ◽  
Author(s):  
Arnab Sarkar ◽  
Raman Kumar Mishra ◽  
Chetan Parkash Kaushik ◽  
Piaray Kishen Wattal ◽  
Devanathan Alamelu ◽  
...  
Keyword(s):  
Borosilicate Glass ◽  
Glass Matrix ◽  
Uranium Determination ◽  
Barium Borosilicate Glass
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