The method of manufacturing glass-ceramics by using steel slag as a major raw material was described. The flexural strength and bulk density of the glass-ceramic at different nucleation temperature was measured. The range of nucleation temperature and crystallization phase identification were done by using DTA, XRD and SEM. The relationship between nucleation temperature and flexural strength and density was investigated. The results show that with the increasing of temperature, the content of crystal and flexural strength of the glass-ceramics increase and until reaching a maximum value, they turn to decrease. The method of manufacturing glass-ceramics with steel slag is a new and effective way for comprehensive utilization of steel slag. （From : No.2, 2006 Glass & Enamel )

This paper introduces the lead’s toxicity to human body and summarizes the relevant laws that restrict the use and release of lead. The main purposes of lead glasses and the research on producing lead-free glasses recently are reviewed. It indicates that the glasses without lead oxide used in electronic industry should be developed as quickly as possible. （From : No.2, 2006 Glass & Enamel )

Tb3+ doped SrAl2O4：Eu2+，Dy3+ phosphor has been synthesized. Tb3+ doped into the phosphor as an impurity does not change the main crystalline structure and the emission spectrum, but improves the light intensity and the light – lasting time and makes the phosphor possess a longer persistent afterglow characteristic with hyperbola type decay (the radiant intensity t -1.1). The explanation of the luminescent mechanism of Tb3+ doped SrAl2O4：Eu2+，Dy3+ was presented. （From : No 2, 2006 Glass & Enamel )

This paper described the research on the fundamentals and technology of electroless nickel plating on glass vacuum flask. The technology of pretreatment for electroless nickel plating on glass vacuum flask, such as, oil removing in alkaline solution, chemical roughening, sensitization, activation, and reduction etc. was also discussed in the present paper. The formulation of NaH2PO2 baths and technological condition and the principle of preparation of solution were summarized. （From : No.2, 2006 Glass & Enamel )

Due to lack of common criterion for the photocatalytic activity estimation, it is hard to evaluate the photocatalytic efficiency of the nano-structured titania in different instance. In this paper, we compared the photodegradation efficiency of nano-titania films, by using dichloroacetic acid, rhodamine B and methyl orange as the photocatalytic referents and the ultraviolet lamp as the source light to generate the photocatalytic reaction. The thermal stability and photosensitivity of these referents were determined in order to reach the specific photocatalytic activity of the nano-structured titania in each case. At the same time, we discussed the characters of these referents under the different pH and both with and without oxygen pumping, with the aim of finding the proper one for the photocatalytic efficiency evaluation. （From : No.2, 2006 Glass & Enamel )

Glasses in the SnO-ZnO-P2O5（SZP）ternary system were studied on potential replacements to PbO-ZnO-B2O3 or PbO-ZnO-SiO2 frits for low temperature (＜500℃) sealing applications to eliminate the harm of Pb to human body and environment. An area of glass formation was found in the SZP ternary system. The relationship of SnO-ZnO-P2O5 glasses between composition and transition temperature have been studied. In order to improve chemical durability and thermal stability the SiO2 was added to these SZP glasses. The coefficient of thermal expansion (CTE) and transition temperature (Tg) of these glasses were tested. Effects of glass composition on coefficient of thermal expansion (CTE) have also been determined. （From : No.2, 2006 Glass & Enamel )

Monodisperse colloidal silica particles were obtained in the ethanol medium in the presence of TEOS as silicon source and ammonia as catalyst. Transmission Electron Microscope and Laser Scattering Particle Analyzer were used to determine the average particle size. The effects of the amount of ammonia and water, the concentration of TEOS and the type of solvents on particle sizes were investigated. The formation mechanisms of the SiO2 particles under these conditions were also studied and discussed. The results showed that with increasing concentration of ammonia, the particle size increased due to the increase of [OH－]. The increase of the concentration of TEOS affected the diameter of the SiO2 particles remarkably. When the ratio of water to TEOS is much greater than 4 ultimately, the increase of water amount can have different consequence to the diameter of particles. In the propyl and butanol solvent system, monodispersed particles were not obtained due to agglomeration. （From : No.2, 2006 Glass & Enamel )

The Li2O-Al2O3-SiO2system basic glasses have been prepared by adopting conventional melt quenching technology. The heat-treatment methods were determined by using DTA, and thermal expansion coefficients of glass before and after heat-treatment were measured. The crystal constituents of glass-ceramics after heat-treatment were studied by the methods of XRD. The result shows that we can get the smaller thermal expansion coefficients of glass-ceramics consisting of TiO2+ZrO2 by two steps heat-treatment method; the higher the heat-treatment temperatures wer, the smaller the thermal expansion coefficients could be. At the same time, the structure of glass-ceramics is compact. （From : No.3, 2006 Glass & Enamel )

TiO2/ZrO2 and TiO2/ZrO2/Ce2O3 composite thin films deposited on glass substrate were prepared by sol-gel method and characterized by Ultraviolet-visible spectroscopy, scanning electron microscopy (SEM ). The photocatalytic efficiency and the anti-inactivation stability of TiO2/ZrO2 and TiO2/ZrO2/Ce2O3fillms were tested by degradating methyl orange solution, which was carried out at different uime under ultraviolet light and sunlight respectively. The results showed that the grain size in TiO2/ZrO2/Ce2O3 thin film doped with Ce3+ was smaller and the homogeneity of grain size distribution was higher than that of TiO2/ZrO2 thin film. And the TiO2/ZrO2/Ce2O3 film had a homogeneous grain size distribution and high grain density on surface. The photocatalytic property and anti-inactivation stability of TiO2/ZrO2/Ce2O3 thin film were all better than that of TiO2/ZrO2 thin film. （From : No.3, 2006 Glass & Enamel )

Inorganic SiO2 membranes on Al2O3 wafer substrates were prepared by Sol-gel method using TEOS as the precursor. The effects of coating temperature, the concentrations of Sol and additive on the performance of membranes were systematically analyzed. Results show that coating at higher temperature can improve the performance of membranes; coating process with the combination of concentrated sol and diluted sol not only improves coating efficiency, but also improves the performance of membranes. In addition, the additives DMF can homogenize the pore size of membranes and improve the performance of inorganic SiO2 membranes. （From : No.3, 2006 Glass & Enamel )

Corrosion of refractories is one of the main reasons that cause glass defects. In this paper, the corrosion mechanisms of TV panel glass to refractories are discussed, the gall defects originated from the corrosion of refractories are briefly reviewed. （From : No.3, 2006 Glass & Enamel )

Microstructure of Nanostructured Zirconia Coating and Its Thermal Shock Resistance

The nanostructured and conventional zirconia coatings were fabricated by an atmosphere plasma spraying technique. The microstructure of the as-sprayed zirconia coatings was analyzed. The results show that the nanostructured zirconia coating is a typical lamellar structure composed of columnar grain about 100nm in diameter. In the nanostructured zirconia coating, the pore is fine and of homogeneous distribution, and there exist a large quantity of small microcracks. The nanostructured zirconia coating possesses better thermal shock resistance than the conventional zirconia coating. ( From : No.1, 2006 Journal of Inorganic Materials )

Antibacterial Effect and the Mechanism of Cu²⁺, Zn²⁺ Bearing Nano-hydroxyapatite

Nano-hydroxyapatite (n-HA) slurry was synthesized at normal pressure, and Cu-bearing nano-hydroxyapatite (Cu-HA), Zn-bearing nano-hydroxyapatite (Zn-HA) and (Cu, Zn)-bearing nano-hydroxyapatite (Cu-Zn-HA) were prepared by the ion exchange method in water medium. The properties of antibacterial materials were characterized by AAS, XRD and TEM. The results of XRD analysis indicate that Cu²⁺ and Zn²⁺ can occupy Ca²⁺ site and also enter the lattice of hydroxyapatite. The results of antibacterial experiments show that Cu-HA and Cu-Zn-HA have better antibacterial ability on E. coli and S. aureus, while the antibacterial effect of Zn-HA is not significant. From the analysis of the antibacterial results, it can be concluded that two mechanisms play the important role in the antibacterial ability, one is electrostatic attraction which making large

amount of bacteria adhere on the n-HA surface, the other is the release of antibacterial metal ions slowly into medium which can inhibit and kill bacteria. ( From : No.1, 2006 Journal of Inorganic Materials )

Synthesis of CaF₂ Single Crystal Induced by Langmuir Monolayers

Crystallization of inorganic solids at self-organized organic or biomacromolecular surfaces is an important process in biomineralization and crystal engineering. Thereinto, Langmuir monolayers are often used as simple models of biomineralization; they can guide the growth of oriented crystals of specific structure, size, and morphology. In this paper, the growth of the CaF₂ crystals induced in situ by Langmuir monolayers as the template was investigated by means of SEM, XPS and XRD. The results of XRD show that CaF₂ grows only along the (111) face under benhenic acid (BA) monolayer, which indicates (111) direction is preferable orientation for the growth of CaF₂ crystals; SEM shows that the morphology of the CaF₂ crystals induced by BA monolayer is relatively regular and simplex, but in the bulk solution, it's irregular and easy to form large size grains. Those may be reasonably explained by lattice matching between the benhenic acid headgroups in the monolayer and the CaF₂ crystals lattice which were fabricated under monolayer. ( From : No.1, 2006 Journal of Inorganic Materials )

Research Status of the Novel La₂Mo₂O₉-based Oxide-ion Conductors

Abstract: La₂Mo₂O₉ -based oxide-ion conductors have attracted more and more attention since they were reported having high ionic conductivity in 2000 by Lacorre et. al. In this paper the recent investigation on the novel La₂Mo₂O₉-based oxide-ion conductors is reviewed. It is focused on the structure and phase transition, oxide-ion conductivity, mechanism of oxygen vacancy diffusion, chemical stability, and thermal expansion coefficient in the pure and doped La₂Mo₂O₉ samples. It is pointed out that the La₂Mo₂O₉-based oxide-ion conductors could be possibly applied in the field such as solid oxide fuel cells, oxygen sensors, oxygen permeable membrane. ( From : No.1, 2006 Journal of Inorganic Materials )

Studies of the Crystallization Dynamics of Na₂O-CaO-Al₂O₃-SiO₂Glass-Ceramics

Na₂O-CaO-Al₂O₃-SiO₂ glass-ceramics is a new kind of constructional material. It not only provides with good mechanical properties but also possesses of good decorative effects. The kinetic parameters of this glass-ceramics were calculated by differential thermal analysis (DTA), and the crystallization kinetics of this glass-ceramic system was investigated. The results indicate that the crystallization activation energy (E) and kinetic crystallization parameter k(Tp) increase with increasing CaO content eventually. The crystalline indexes (n) are all less than 3 and indicate that for this glass-ceramic system the crystallization process is surface crystallization. （From : No.1, 2006 Glass & Enamel )

Influence of Additives on the Properties of Mn-Zn Ferrit Powder prepared by Coprecipitation Method

The effect of additives on the coprecipitation preparation processs was studied in this paper. The pure, nanometer Mn-Zn ferrite crystallites with good magnetic property and a narrow grain size distribution were obtained by adding additives. And the influence of additives on the XRD patterns, magnetic properties and Curie temperature of Mn-Zn ferrite was investigated. The results of the research indicate that additives can make the crystals grow more perfectly and bigger, and improve the magnetic properties of the ferrite, and decrease Curie temperature. （From : No.1, 2006 Glass & Enamel）

Research on Preparation of thermomagnetic Mn-Zn-Ferrite

The Mn-Zn ferrite of thermomagnetic effect was prepared by coprecipitation. The samples were tested by LS Particle Size Analyzer for precursor and the hysteresis loop, XRD and thermomagnetic tests were also carried out. The results show that the best pH value is 4, the best preserved temperature is 70℃ and the best preserved time is 1.5 h. We use reversal drop-method to add reagent. Being placed under alternative magnetic field, the samples have the obvious thermomagnetic effect. Comared to dry preparation, the Mn-Zn ferrite prepared by wet preparation has better quality. （From : No.1, 2006 Glass & Enamel）

The Scheme for Recipe Optimization of Glass Ceramics Based on Steel Slag

The method of manufacturing glass-ceramics using steel slag as a major raw material was described. Batch composition was studied based on phase diagram of CAS system and DTA curve. Crystallization phases were determined by using XRD and SEM. The results show that dominant crystalline phase is diopside. The shape of the diopside crystals is granule-like. The size of the crystals is about 1 μm. The method of manufacturing glass-ceramics with steel slag is a new and effective way for comprehensive utilization of steel slag. （From : No.1, 2006 Glass & Enamel）

The Studies on Photocatalytic hydrophilic and Antifogging Glass

TiO₂ thin films coated on soda-lime glass were prepared by sol-gel process through liquid level method. The effects of different light sources and 175℃ heat-treatment on the hydrophilicity and antifogging ability of TiO₂ thin films were investigated. The results showed that liquid level method was as good as dipping-withdrawing manner；different light sources had various hydrophilicity，antifogging properties；and 175℃ heat-treatment made TiO₂ thin films get better hydrophilicity, antifogging ability. （From : No.1, 2006 Glass & Enamel）

Composition Design of Hollow Glass Micro-sphere for ICF Experiment

Based on the quantitative relationships between glass composition and glass Young’s modulus, density, chemical durability, viscosity, melting point, surface tension and devitrification, 10 glass compositions are selected as the optimum glass compositions of hollow glass microsphere used as ICF experiment target according to the requirements of high strength, high chemical durability, low melting point, low viscosity. Compared with the properties of other hollow glass micrespheres for ICF experiment, the chemical durability of the 10 candidate glass compositions is improved significantly, and the tensile strength of the 10 candidates is also increased remarkably. Moreover, the melting point, soften point and viscosity of the 10 candidates still satisfactorily meet the requirements of HGM fabrication in tower furnace. （From : No.1, 2006 Glass & Enamel）