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3.838 Aktuelle Fachpublikationen zum Thema temperature

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A Method for Determining Bulk Density, Material Density, and Porosity of Melter Feed During Nuclear Waste Vitrification

24.09.2015 | Zachary Hilliard, Pavel Hrma, Journal of the American Ceramic Society, 2015

Glassmelting efficiency largely depends on heat transfer to reacting glass batch (melter feed), which in turn is influenced by the bulk density (ρb) and porosity (ϕ) of the reacting feed as functions of temperature (T). Neither ρb(T) nor ϕ(T) functions are readily accessible from direct ...


Influence of Process Parameters on the Morphology of Spray‐Dried BaCl2 Powders

24.09.2015 | W. Taylor Shoulders, Gregory Bizarri, Edith Bourret, Romain M. Gaume, Journal of the American Ceramic Society, 2015

Spray‐drying is an effective method for producing powder aggregates with controlled size and morphology. Here, we report on a systematic study aimed at determining how spray‐drying parameters such as nozzle temperature, gas flow, salt concentration and solution feed rate, influence the ...


Performance Evaluation of Doped Titanium Oxide for Low‐Voltage Applications

24.09.2015 | Shahida Begum, Ida Rasyada Daud, Agileswari Ramasamy, International Journal of Applied Ceramic Technology, 2015

Varistors are the electronic devices which are used in various industries to protect the electrical and electronic systems from sudden surges. In this research, the electrical properties of titanium dioxide (TiO2) doped with tantalum pentoxide (Ta2O5), tungsten trioxide (WO3), cobalt oxide ...


Methane Recovery from Coal Bed Gas Using Modified Activated Carbons: A Combined Method for Assessing the Role of Functional Groups

22.09.2015 | Ziyi Li; Yingshu Liu; Chuanzhao Zhang; Xiong Yang; Jianliang Ren; Lijun Jiang, Energy & Fuels, 2015

Chemical modification at room temperature on adsorbents is a cost-effective and convenient way of enhancing the methane recovery from the coal bed gas. In this study, modifications on coconut-shell-based activated carbons (ACs) by aqueous ammonia and KOH agents were investigated and their ...


Dense Iodoapatite Ceramics Consolidated by Low‐Temperature Spark Plasma Sintering

21.09.2015 | Tiankai Yao, Spencer Scott, Guoqing Xin, Fengyuan Lu, Jie Lian, Journal of the American Ceramic Society, 2015

Pb9.85(VO4)6I1.7, a potential waste form for long‐lived I‐129 immobilization, experiences phase decomposition and thus iodine loss at an elevated temperature above 400°C, presenting a significant challenge for effective management of radioactive iodine. In this work, we report low‐temperature ...


Primary Fragmentation Characteristics of Coal Particles during Rapid Pyrolysis

21.09.2015 | Tongmin Cui; Zhijie Zhou; Zhenghua Dai; Chao Li; Guangsuo Yu; Fuchen Wang, Energy & Fuels, 2015

Experiments were carried out to investigate the rapid pyrolysis of Nei-meng (NM) lignite, Shen-fu (SF) bituminous coal, and Jin-cheng (JS) anthracite with the duration time of 0–500 ms and the temperature of 1173–1773 K using a high-frequency induction furnace. Interest was centered on the ...


Experimental study of surface tension, specific heat and thermal diffusivity of liquid and solid titanium

20.09.2015 | Author(s): K. Zhou, H.P. Wang, J. Chang, B. Wei, Chemical Physics Letters, 2015

Publication date: 16 October 2015 Source:Chemical Physics Letters, Volume 639 Author(s): K. Zhou, H.P. Wang, J. Chang, B. Wei The thermophysical properties of liquid and solid titanium such as the surface tension, specific heat and thermal diffusivity have been investigated over a ...


Electrical conduction mechanism in plasma polymerized 2‐(diethylamino)ethyl methacrylate thin films

18.09.2015 | Tamanna Afroze, A. H. Bhuiyan, Polymer Engineering and Science, 2015

Thin films of different thicknesses were prepared through glow discharge of 2‐(diethylamino)ethyl methacrylate (DEAEMA) using a capacitively coupled reactor. Current density–voltage (J–V) characteristics for plasma polymerized (PP) DEAEMA thin films of thicknesses 100, 200, 250, and 300 nm in ...


Materials, Vol. 8, Pages 6419-6436: A Comparative Study of the Sintering Behavior of Pure and Manganese-Substituted Hydroxyapatite

18.09.2015 | Zilm, Michael ; Thomson, Seamus D.; Wei, Mei, Materials, 2015

Hydroxyapatite (HA) is a widely studied biomaterial for its similar chemical composition to bone and its osteoconductive properties. The crystal structure of HA is flexible, allowing for a wide range of substitutions which can alter bioactivity, biodegradation, and mechanical properties of the ...


Modeling Oilfield Emulsions: Comparison of Cyclopentane Hydrate and Ice

18.09.2015 | Genti Zylyftari; Amit Ahuja; Jeffrey F. Morris, Energy & Fuels, 2015

A comparison of cyclopentane hydrate- and ice-forming emulsions is reported. Density-matched 40% (v/v) water emulsions are studied at various salt concentrations, using experimental tools of rheometry and direct visualization of the morphology under formation of hydrate or ice from the liquid ...


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