12 Result(s)
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Article
Lanhua **g
English
Nanotechnology
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Article
Open AccessDeformable Catalytic Material Derived from Mechanical Flexibility for Hydrogen Evolution Reaction
The main effects of deformation of flexible catalytic materials on the catalytic hydrogen evolution reaction performance are discussed, and a series of novel strategies to desi...
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Microstructure and Its Physicochemical Basis for the White Porcelain from Gongyi Kiln of Henan Province in China
Gongyi is the birthplace and one of the most famous production areas of white porcelain in China. In this study, white porcelain samples from the Northern Wei to Tang Dynasties excavated from Baihe and Huangye...
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Voltammetric determination of trace doxorubicin at a nano-titania/nafion composite film modified electrode in the presence of cetyltrimethylammonium bromide
A sensitive electrochemical method was developed for the determination of doxorubicin at a glassy carbon electrode (GCE) modified with a nano-titania (nano-TiO2)/nafion composite film. Nano-TiO2 was dispersed int...
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Direct chemiluminescence determination of fenbufen by the enhancement of the \({\text{Ru}}\left( {{\text{phen}}} \right)_3^{2 + } \) –cerium(IV) system
A method is described for determination of fenbufen that is based on the chemiluminescence (CL) reaction of the $${\text{Ru}}\left( {{...
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Chemiluminescence method for the determination of mitoxantrone by the enhancement of the tris-(4,7-diphenyl-1,10-phenanthrolinedisulfonic acid)ruthenium(II)–cerium(IV) system
A new injection chemiluminescence system was used for the determination of mitoxantrone. The technique is based on the reduction effect of mitoxantrone on the tris-(4,7-diphenyl-1,10-phenanthrolinedisulfonic a...
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Effects of microstructural evolution on the thermal conductivity of α–Al2O3 prepared from nano-size γ–Al2O3 powder
The thermal diffusivities (D) of porous α–Al2O3 specimens prepared from nano-size γ–Al2O3 powder and from conventional submicrometer-size alumina powders were measured at room temperature, and the thermal conduct...
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Thermal diffusivity maps: Case studies in ceramics
A new methodology for map** thermal diffusivity using a photothermal deflection method is introduced. Two case studies are made: fiber-reinforced composite structures and contact damage zones in alumina. In ...
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Effect of mechanical damage on thermal conduction of plasma-sprayed coatings
A thermal wave methodology for monitoring the thermal conduction of ceramic coatings with accumulating mechanical damage is described. Tests are conducted on a model alumina coating containing laminar defect i...
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Thermal wave analysis of contact damage in ceramics: Case study on alumina
Thermal waves are used to image damage accumulation digitally beneath Hertzian contacts in ceramics. Alumina ceramics over a range of grain size 3–48 μm are used in a case study. The nature of the images changes ...
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Grinding force and microcrack density in abrasive machining of silicon nitride
The relationship between grinding forces and the material’s resistance to microfracture is investigated in abrasive machining of silicon nitride ceramics. Surface grinding is performed on two forms of silicon ...
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Damage accumulation and cyclic fatigue in Mg-PSZ at Hertzian contacts
Hertzian contact damage in as-fired, peak-aged, and over-aged Mg-PSZ is studied, in single-cycle and multiple-cycle loading. Indentation stress-strain curves reveal a monotonically increasing quasi-plasticity ...
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Heat conduction in silicon thin films: Effect of microstructure
A study was made of the thermal properties of low pressure chemical vapor deposition (LPCVD) silicon thin films with amorphous and polycrystalline microstructures, produced by varying the substrate temperature...
