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| 1 | The Effect of Sm_2O_3 on the Chemical Stability of Borosilicate Glass and Glass Ceramics显示文摘Sm2O3 containing zinc-borosilicate glass and glass ceramics were prepared by melt quenching method, and the effect of Sm2O3 and micro-crystallization on the chemical stability of borosilicate glass was explored. DTA analysis showed that the endothermic peak and exothermic peak of basic glass changed from 635 ℃ and 834 ℃ to 630 ℃ and 828 ℃ respectively as a result of the doping of Sm2O3. XRD analysis showed the promoting effect of Sm2O3 on crystallization ability of this glass. The cumulative mass loss of base glass, Sm2O3 containing glass, glass ceramic and Sm2O3 containing glass ceramic was 0.289, 0.253, 0.329, 0.269 mg/mm2 respectively after 26 days corrosion in alkali solution, and 1.293, 1.290, 0.999, 1.040 mg/mm2 respectively in acidic erosion medium. Micro-crystallization decreased and improved the alkali and acid resistance of borosilicate glass respectively, the addition of Sm2O3 increased the alkali resistance of base glass and glass ceramics, and the slight effect of Sm2O3 on the acid resistance of borosilicate glass was also observed. | 张永强 WANG Mitang LI Mei WANG Ming 刘全生 | 2014 | Journal of Wuhan University of Technology(Materials Science)2014，29，4： | 3 |
| 2 | The role of Gd 2 O 3 and Y 2 O 3 in corrosion of soda lime silicate glass显示文摘 | Mitang Wang Mei Li Jinshu Cheng Feng He Zhaogang Liu Yanhong Hu | 2013 | Journal of Nuclear Materials (-)2013，，1： | 1 |
| 3 | Raman spectra of soda–lime–silicate glass doped with rare earth显示文摘 | Mitang Wang Jinshu CHeng Mei Li Feng He | 2011 | Physica B: Physics of Condensed Matter2011，，20： | 1 |
| 4 | The effect of light rare earths on the chemical durability and weathering of Na 2 O–CaO–SiO 2 glasses显示文摘 | Mitang Wang Jinshu Cheng Qiming Liu Peijing Tian Mei Li | 2010 | Journal of Nuclear Materials2010，，2： | 1 |
| 5 | Effect of rare earths on viscosity and thermal expansion of soda-lime-silicate glass显示文摘 | Mitang WANG Jinshu CHENG Mei LI | 2010 | Journal of Rare Earths2010，，： | 1 |
| 6 | Ramanspectra of soda-lime-silicate glass doped with rare earth显示文摘 | WANG Mitang CHENG Jinshu MEI Li | 2011 | Physica B2011，406，： | 1 |
| 7 | Effect of rare earths on viscosity and thermal expansion of soda-lime-silicate glass显示文摘 | Mitang WANG Jinshu CHENG Mei LI | 2010 | Journal of Rare Earths2010，，： | 1 |
| 8 | Phase separation and crystallization of La2O3 doped ZnO-B2O3-SiO2 glass显示文摘In order to investigate the effect of the La2O3 on the phase separation and crystallization of ZnO-B2O3-SiO2 glass, after the occurence of the phase separation and crystallization of glasses by heat treatment, the microstructure morphology and distribution of elements in different sample areas were characterized by the scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS);the non-isothermal crystallization kinetics of the glass samples was studied by using a differential scanning calorimeter(DSC) and the precipitated crystals of crystallized glass were determined by the X-ray diffraction(XRD). The results suggest that the phase separation and crystallization of 60ZnO-30 B2O3-10SiO2 glass occur at glass surface, and the incorporation of small amount(<4 mol%) of La2O3 significantly inhibits the glass phase separation and consequently improves the thermal stability of glass.Doping of La2O3 accelerates the glass crystallization at the elevated temperature(660 ℃), making the depth of crystal layer thicker and diffraction intensity in XRD patterns stronger. However, due to the precipitation of several crystals that occur simultaneously when La2O3 doping amount is 4 mol%, crystallization of the 60ZnO-30B2O3-10SiO2 glass is obviously depressed, the crystallization activation energy Ec and the relative crystallinity Xc of the glass reach the maximum and the minimum values, respectively.Although transition from one-dimensional growth of crystals to two-dimensional growth of crystals results from La2O3 addition, the one-dimensional growth of crystals remains dominant in crystallization process. This work can provide some useful information for preparing glass ceramics with nano-crystals precipitated in the glass surface. | Mitang Wang Long Fang Mei Li Zhaogang Liu Yanhong Hu Xiaowei Zhang Wei Deng Ruhil Dongol | 2019 | Journal of Rare Earths2019，37，7： | 0 |
| 9 | Tailoring effect of Y_(2)O_(3)on water resistance of Na_(2)O-ZnO-Al_(2)O_(3)-B_(2)O_(3)glasses显示文摘To explore the improving effect of Y_(2)O_(3)on the water resistance of xY_(2)O_(3)-(100-x)(0.05 Al_(2)O_(3)-0.15 ZnO-0.15 Na_(2)O-0.65 B_(2)O_(3))(x=0,0.7 mol%,1.4 mol%,2.1 mol%,2.8 mol%)glasses,glass structure and ion migration characteristics were respectively characterized by an infrared spectrometer and an electrochemical workstation.X-ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive Xray spectroscopy(EDS)and inductively coupled plasm-atomic emission spectrometry(ICP-AES)were used to comprehensively analyze the alteration products.The experimental results show that with the increase of Y_(2)O_(3)content,the mass loss per unit area of the glass is significantly reduced,and pH in leaching solution has the same change trend with mass loss of the glass,which indicates the improving effect of Y_(2)O_(3)addition on the studied glass.The content of[BO_(4)]structural unit and dc conductivity of glass increase firstly and then decrease with the increase of Y_(2)O_(3)content,and reach a maximum at x=0.7 mol%.Although addition of Y_(2)O_(3)plays the role in the changes of glass structure and ion migration characteristics,the more important influence of Y_(2)O_(3)is on the glass surface alteration layer.Y and Zn elements are enriched on the glass surface and finally transformed into an alteration layer,moreover,the adhesion between the alteration layers and the glass matrix is enhanced with the increase of Y_(2)O_(3)content,which effectively blocks the further interdiffusion between the water molecules and the glass matrix. | Mitang Wang Ao Li Xiaowei Zhang Dongliang Zhang Siqingaowa Jin Dehua Xiong Wei Deng | 2022 | Journal of Rare Earths2022，40，8： | 0 |
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