Sol–gel synthesis of Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte

The effect of calcination on Li ion conductivity of Li_1.5Al_0.5Ge_1.5(PO₄)₃ (LAGP) solid electrolyte prepared by a sol–gel method is examined. The Li ion conductivity of LAGP increases with calcination temperature. After reaching maximum conductivity at 850 °C, the conductivity decreases with increase of the calcination temperature. The calcination holding time also strongly affects Li ion conductivity of LAGP. The conductivity increases with holding time until 12 h and then decreases. It is found that the control of crystallization rate is critical to obtain bulk LAGP with high Li ion conductivity. The highest bulk and total conductivities at 30 °C are 9.5×10⁻⁴ and 1.8×10⁻⁴ S cm⁻¹, respectively, obtained for the bulk LAGP calcined at 850 °C for 12 h.     

Synthesis and characterization of Bi1.5Zn0.92Nb1.5−xSnxO6.92−x/2 pyrochlore ceramics

The morphological, compositional, structural, dielectric and electrical properties of Bi_1.5Zn_0.92Nb_1.5?xSn_xO_6.92?x/2 ceramics have been investigated by means of scanning electron microscopy (SEM), X-ray energy dispersion spectroscopy (EDS), X-ray diffraction (XRD), temperature and frequency dependent dielectric constant and temperature dependent conductivity measurements for Sn-contents in the range of 0.00 ≤ x ≤ 0.60. It was shown that single phase of the pyrochlore ceramics can only be obtained for x ≤ 0.25. Above this value a ZnO phase appeared in the XRD patterns and SEM micrographs as well. An increase in the lattice constant and in the temperature coefficient of dielectric constant and a decrease in the dielectric constant values with increasing Sn content was observed for the ceramics which exhibited a single phase formation. A temperature dependent but frequency invariant dielectric constant was observed for this type of ceramics. The lowest electrical conductivity and highest dielectric constant was observed for the sample which contains 0.06 Sn. The Bi_1.5Zn_0.92Nb_1.5?xSn_xO_6.92?x/2 pyrochlore ceramic conductivities are thermally active above 395 K. For temperatures greater than 395 K, the conductivity activation energy which was found to be 0.415 eV for the pure sample increased to 1.371 eV when sample was doped with 0.06 Sn.     

Intermediate Handing-over of the 1.5 Million T/A Hydrocracking Unit

The 1.5 million t/a hydrocracking unit in Jinling Petrochemical Co., Ltd. conducted intermediate handing-over on     

水热法合成Bi1.5ZnNb1.5O7纳米粉体

以Bi(NO3)3·5H2O,ZnO和Nb2O5为原料,KOH作为矿化剂,用水热法合成了单相Bi1 5ZnNb1.5O7粉体.用N2吸附法测定单相Bi1.5ZnNb1.5O7粉体的比表面积并计算相应的粒径.研究了KOH浓度、合成温度和反应时间对粒径的影响.用X射线衍射分析合成粉体的物相组成,并通过Scherrer公式计算粉体晶粒的尺寸.用透射电子显微镜分析合成粉体的形貌.结果表明:采用水热法可以合成单相立方焦绿石结构的Bi1.5ZnNb1.5O7纳米粉体.改变水热反应条件,可以控制合成粉体的粒径和比表面积大小.当KOH浓度为1.8 mol/L,温度为180～220 ℃,反应时间为24h时,合成的Bi1.5ZnNb1.5O7纳米粉体的最小粒径为51 nm,最大比表面积为28.8 m2/g.     

熔盐法制备Bi1.5ZnNb1.5O7陶瓷粉体

以Bi2O3,ZnO和Nb2O5为原料,KCl为熔盐,用熔盐法合成了单相Bi1.5ZnNb1.5O7陶瓷粉体.XRD和SEM分析表明,在950～1000 ℃,合成了单相Bi1.5ZnNb1.5O7粉体,粉体呈颗粒状,尺寸约2～5 μm.研究了合成温度、熔盐含量和保温时间对粉体颗粒形貌和尺寸的影响.结果表明,合成温度对Bi1.5ZnNb1.5O7粉体形貌和尺寸影响较大,熔盐含量和保温时间对其形貌和尺寸的影响相对较小.     

Ce3+掺杂的Ca1.5Y1.5Al3.5Si1.5O12荧光粉发光性能研究

采用高温固相法合成白光LED用Ca1.55Y1.5Al3.5Si1.5O12:x Ce3+黄绿色荧光粉,利用X-射线粉末衍射和荧光光谱进行表征。实验结果表明,在紫外近紫外区(200~380nm)激发下荧光粉发射光谱主峰位于402nm,在蓝光454nm激发下荧光粉发射光谱主峰位于530nm。当灼烧温度为1623K,Ce3+掺杂浓度为10%,发光强度最高。随着Ce3+的掺杂增加会发生浓度猝灭。该荧光粉与商业近蓝光芯片发射相匹配,是一种优秀的白光LED用黄绿色荧光粉。     

Bi1.5ZnNb1.5O7纳米粉体的水热合成与表征

以分析纯的Bi(NO_3)_3·5H_2O,ZnO和Nb_2O_5为初始原料,KOH为矿化剂,采用水热法合成立方焦绿石结构的Bi_(1.5)ZnNb_(1.5)O_7纳米粉体。通过XRD分析其物相组成,TEM分析其形貌和尺寸,Scherrer公式计算其晶粒的大小。结果表明,在KOH浓度为1.8mol/L,温度为180～220℃反应6～48h,可以合成立方焦绿石结构的Bi_(1.5)ZnNb_(1.5)O_7纳米粉体,粉体颗粒尺寸约30～50nm,形貌呈较为规则的颗粒状。合成温度和反应时间对合成粉体的物相和粒径都有一定的影响,并讨论了水热法合成Bi_(1.5)ZnNb_(1.5)O_7纳米粉体的机理。     

Features of Polymerization of Methyl Methacrylate using a Photocatalyst—the Complex Oxide RbTe1.5W0.5O6

Journal of Inorganic and Organometallic Polymers and Materials - Radical polymerization of methyl methacrylate in an aqueous emulsion was carried out using the complex oxide RbTe1.5W0.5O6 as a...     

高安投资1.5亿改造生产线

本刊讯为促进陶瓷产业结构优化升级,淘汰落后产能,江西高安将在全市范围内开展窑炉尾气脱硫设施建设,计划投资1.5亿元,共改造陶瓷生产线134条。该计划将分三期进行,首期24条生产线的改造将于8月底完成。预计改造完成后,窑炉所排出的有害物质可减少85%。     

年产1.5万吨IPDI项目

<正>该项目位于山东省烟台市,由万华化学集团股份有限公司投资建设,建设年产1.5万吨IPDI项目。项目总投资77892.79万元。     

Ni替代Nb对Bi1.5ZnNb1.5O7陶瓷介电性能的影响

以分析纯级原料,按照一定比例混合,利用固相反应制备Bi1.5ZnNb1.5O7陶瓷.研究结果表明:Ni掺杂样品能够有效地降低烧结温度至960℃;样品相结构保持立方焦绿石相;随着Ni3+替代量的增加,介质材料的介电常数及介电损耗逐渐增大;在-195～150℃的温度范围内,介电常数存在明显的弛豫现象,随Ni3+的掺杂量增加,逐渐向高温方向移动,在1 MHz下其峰值温度为:-98.1℃,-97.7℃,-97.1℃,-94.2℃.     

φ1.5m玻璃钢喷水球

1989年年底,我厂受江苏仪征化纤公司委托,为该公司新建体育馆广场设计制造了六只Φ1.5m的玻璃钢喷水球。喷水球球表面涂火红色胶衣树脂,安装在日光照射下喷水时,犹如群星闪烁,令人赏心悦目。本文简要介绍该球体的制作方法。     

涤纶原丝EYS1.5测试新方法

根据涤纶原丝 EYS1.5(倍半伸长率 )的定义 ,提出一种使用 XQ- 1强伸仪测试涤纶原丝 EYS1.5的方法 ,并对该方法的准确性进行论证。     

Influence of sintering temperature on energy storage properties of BaTiO3–(Sr1−1.5xBix) TiO3 ceramics

The effect of sintering temperature on microstructure, dielectric properties and energy storage properties of BaTiO₃–(Sr_1?1.5xBi_x)TiO₃ (x = 0.09) (BT–SBT) ceramics was investigated. The sintering temperature has pronounced influence on the grain size, shrinkage, and dielectric properties of the BT–SBT ceramics. With increasing sintering temperature, the dielectric constant increases largely. However, the increasing tendency of the dielectric breakdown strength (BDS) is less noticeable but become more evident with the consideration of Weibull modulus. For the BT-SBT ceramics, the unreleased energy density decreases and the electric field stability of the energy storage efficiency enhances with the increase of sintering temperature.     

Co_(1.5)Fe_(1.5)O_4@MWCNTs非均相催化PMS降解水中苯酚

以硝酸钴、硫酸亚铁为前驱体,通过一步水热法合成了多壁碳纳米管负载钴铁双金属氧化物的非均相催化剂Co_(1.5)Fe_(1.5)O_4@MWCNTs。对其进行的XRD、SEM表征结果表明,该催化剂组成稳定且具有单相立方晶型。使用Co_(1.5)Fe_(1.5)O_4@MWCNTs对苯酚进行催化降解实验,结果表明:在中性pH、催化剂质量浓度0.20 g/L、过一硫酸盐(PMS)浓度3.0 mmol/L条件下处理50 mg/L苯酚溶液40 min,对苯酚的降解率可达97.92%。     

Interfacial behaviour between Bi1.5ZnNb1.5O7·0.02V2O5 and Ag

The interfacial behavior between Bi_1.5ZnNb_1.5O₇·0.02V₂O₅ (BZN-V) dielectric and silver was investigated by using X-ray diffractometer, scanning electronic microscopy, and electronic probe microanalyzer (EPMA). No new crystalline phase was found after firing the mixture of BZN-V and silver powder at 850 °C for 1 h. However, silver migration was observed when BZN-V was cofired with a silver electrode under the same condition. A diffusion distance of 620 μm was measured by EPMA. A eutectic reaction between silver and V₂O₅ is proposed for the mechanism of the silver migration.     

1.5吨球磨机减速箱的技术改造

轻工部定型产品1.5吨球磨机是各陶瓷厂家的常用设备,而该球磨机减速箱在使用中却出现不少问题。特别是离合器部分,设计不甚合理。其中的花键轴、摩擦盘相互磨损严重;使用寿命短;维修时间长、成本高;而且,时常还会由于配件供应短缺而被迫停产。此外,减速箱容易泄漏,污染环     

年产1.5万吨氰尿酸生产项目

正该项目位于河北省邢台市宁晋县西仓路东侧、汪洋沟西侧,由河北三源净水剂科技有限公司投资建设,项目占地1.9893公顷,建设生产车间3栋以及辅助建筑设施,总建筑面积9054.22平方米。年产氰尿酸15000吨、阻燃剂10000吨、硫酸铵(副产品)45000吨。项目总投资8000万元。     

吉林化纤1.5万t碳纤维项目启动

正2020年8月18日,在吉林国兴碳纤维公司厂区内,中国吉林国家碳纤维产业园项目暨吉林化纤1.5万t碳纤维项目正式启动。该碳纤维项目占地18万m~2,计划总投资24.4亿元,投产后可实现年销售收入17.6亿元,利税2.1亿元。项目主体包括三个碳化车间及公用工程配套厂房,拟新购     

萘1.5—二异氰酸酯(NDI)

<正> 本品简称NDI,外观为白色～淡黄色的薄片型固体,无臭;比重1.42(d_4~(20));融点126.5～127℃;沸点167℃/5mmHg、183℃/10mmHg;着火点185℃(燃烧热量6.260卡/克);折光率1.4253;蒸气压5mmHg/167℃:难溶于水,易溶于氯苯中。商品质