Radionuclide leaching from composite-glass materials

Atomic Energy ◽  
1992 ◽  
Vol 73 (3) ◽  
pp. 759-761
Author(s):  
V. A. Kashcheev ◽  
M. I. Ozhovan ◽  
P. P. Polu�ktov
2013 ◽  
Author(s):  
Ranjana S. Varma ◽  
D. C. Kothari ◽  
Ravi Kumar ◽  
P. Kumar ◽  
S. S. Santra ◽  
...  

2016 ◽  
Vol 27 (5) ◽  
pp. 4465-4469
Author(s):  
Meng Wei ◽  
Jihua Zhang ◽  
Jianfeng Liu ◽  
Jiapeng Huang ◽  
Hongwei Chen ◽  
...  

2020 ◽  
pp. 38-45
Author(s):  
Duong Nguyen Thi Thuy ◽  
Huong Nguyen Thi Kim

Background: Composite and Glass ionomer cement (GIC) are common restorative materials of non carious cervical lesions (NCCLs), which effects are controverisial. The aim of the present study was to compare the result of restorations on NCCLs between Composite and GIC. Materials and Methods: follow-up clinical trial with split-mouth design. Thirty-six patients with 96 NCCLs were divided into 2 groups (n=48/group): Group 1 restored by Composite, Group 2 restored by GIC. The restorations were evaluated at baseline, 1 and 3 months for pulpal sensitivity, restoration morphology and overall success grade. Results: GIC restorations gained 100% Good results for all parameters at 3 time points. Composite showed 87.5%, 93.8% and 97.9% Good results at baseline, 1 and 3 months, sequentially. At 3 weeks recall, 1 Composite restorations (2.1%) showed Moderate results of Retention and 2 Composite restorations (4.2%) changed colour. Conclusions: There was no statistically significant difference seen among the three groups for 3 parameters. Key words: non-carious cervical lesion, Composite, Glass ionomer cement


2010 ◽  
Vol 7 (2) ◽  
Author(s):  
S. Sakuragi ◽  
Y. Funahashi ◽  
T. Suzuki ◽  
Y. Fujishiro ◽  
M. Awano

Currently, microtubular solid oxide fuel cells (SOFC) bundles are under development, which consist of microtubular SOFCs (diameter=0.8–2 mm) and porous cathode matrix where the SOFCs are integrated. In this study, a new fabrication process of the sealing layer for the microtubular SOFC bundles was examined using MgO-magnesium boro-silicate glass composites. A sheet and paste of these composites were prepared, and the microstructure and shrinkage behavior of the composite glass layers were investigated to minimize the deformation of the layer during fabrication process. The results indicated that using 100% glass sheet with the composite glass pastes appeared to be effective in reducing the shrinkage of the glass layer. In addition, the effect of sheet thickness on the shrinkage behavior was investigated and showed that the shrinkage ratio reduced as the sheet thickness decreased, and the shrinkage of about 0.2% was achieved at the sheet thickness of about 200 μm without defects or shape deformations. Thus, this fabrication method turned out to be effective for constructing a sealing layer for the microtubular SOFC bundles.


2006 ◽  
Author(s):  
Gerhard Seifert ◽  
Alexander Podlipensky ◽  
Amin Abdolvand ◽  
Heinrich Graener

2018 ◽  
Vol 768 ◽  
pp. 239-245
Author(s):  
Qiang Li ◽  
Wei Ying Liu ◽  
Guo Yin Sun

An inserted type Ag/TeO2-SiO2composite gel glass was prepared through silver nanoparticles embedded in TeO2-SiO2composite gel. The silver nanoparticles were prepared previously by ascorbic acid deoxygenates AgNO3solution and mixed into TeO2-SiO2composite sol which was prepared in aqueous system using TeO2and tetraethoxysilane as precursors, and then the inserted type Ag/TeO2-SiO2composite gel glass was produced through sol aging and molding. The silver nanoparticles which dispersed in the TeO2-SiO2gel substrate made the composite glass having excellent nonlinear optical properties. The nonlinear optical parameters was tested by Z-scan technique using 15 ps laser pulses at the wavelength of 532 nm. The surface morphology was characterized by SEM. The results identified that spherical Ag nanoparticles with the size about 50-100 nm dispersed in the TeO2-SiO2gel. In the Ag/TeO2-SiO2material, the doped structure and the trigonal bipyramid structure of TeO2was the important factor for the excellent nonlinear optical performance.


RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 52167-52173 ◽  
Author(s):  
Shengguan Qu ◽  
Huashan Lou ◽  
Xiaoqiang Li ◽  
Tairong Kuang

A low melting point bismuthate glass was developed for bonding SiCp/Al composite, and the novel SiCp/Al composite–glass material was prepared.


Sign in / Sign up

Export Citation Format

Share Document