نتایج جستجو برای: solidliquid oxide composites

تعداد نتایج: 219711  

2012
T. Rangaswamy

This paper compares the values of the thermal and fire resistance properties of composites made using the hand layup technique. E-Glass fiber reinforced epoxy composites was fabricated by filling varying concentration of aluminum oxide (Al2O3), magnesium hydroxide(Mg(OH)2), silicon carbide (SiC), and hematite powder. The main aim of this work was to determine the thermal conductivity, thermal e...

2014
V Velmurugan J P Raina

Composites with nanoparticles and polymers can improve the functionalities and existing formulations. In this work we synthesized Graphene Oxide and is incorporated into an epoxy based negative tone photoresist in different weight percentages. Thermal conductivity studies were carried out on those composites and it was found that 13 % by weight is the optimized loading to have an enhanced therm...

Journal: :Brazilian dental journal 2003
Halim Nagem Filho Maria Tereza Fortes Soares D'Azevedo Haline Drumond Nagem Fernanda Pátaro Marsola

This study evaluated the effect of surface finishing methods on the average surface roughness of resin composites. Seven composites and two polishing systems were used. One hundred and twenty-six conical specimens of each material were prepared in stainless steel molds against a polyester strip. Forty-two of them remained intact and were used as controls. Each half of the remaining samples was ...

2014
Guangqiang Han Yun Liu Lingling Zhang Erjun Kan Shaopeng Zhang Jian Tang Weihua Tang

New ternary composites of MnO2 nanorods, polyaniline (PANI) and graphene oxide (GO) have been prepared by a two-step process. The 100 nm-long MnO2 nanorods with a diameter ~20 nm are conformably coated with PANI layers and fastened between GO layers. The MnO2 nanorods incorporated ternary composites electrode exhibits significantly increased specific capacitance than PANI/GO binary composite in...

2014
M. S. Sham Prasad

The knowledge of load bearing characteristics and failure of material is very important for mechanical engineers. Various metallic, non metallic and composite materials are used in different application. In view of this, the main objective of the present work is to analyze the influence of Aluminum Oxide filler on Fracture Toughness properties of Chopped Strand Mat (CSM) E-Glass Fiber reinforce...

2016
Xinguang Zhou Yinglu Zhang Zuteng Huang Dingkun Lu Anwei Zhu Guoyue Shi

In 2015, more than 30% of erasers were found to contain a PAE content that exceeded the 0.1% limit established by the Quality and Technology Supervision Bureau of Jiangsu Province in China. Thus, strengthening the supervision and regulation of the PAE content in foods and supplies, in particular, remains necessary. Graphene oxide (GO) and its composites have drawn great interests as promising a...

2016
Yongli Dong Xiaoyu Niu Weina Song Dong Wang Liqiang Chen Fulong Yuan Yujun Zhu Frédéric Jaouen

The vanadium oxide/reduced graphene oxide (VOx/RGO) composites have been prepared by a simple solvothermal method with the assistance of cationic surfactant cetyltrimethylammonium bromide (CTAB). The microstructure and morphology of the resultant VOx/RGO composites have been well characterized. The VOx nanoparticles are highly dispersed on the RGO sheets with a particle size of about 25 nm. Whe...

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Alumina-mullite-zirconia composites were prepared by the reaction sintering method between alumina and zircon powders and the effect of two additives (chromium oxide and manganese oxide)were investigated on their properties. 2 and 4 wt% of each oxide were added to the raw material composition and after pressing, the samples were sintered at 1630°C. The results showed that chromium oxide decreas...

2010
C. J. Li H. Yang Z. M. Ren W. L. Ren Y. Q. Wu

Solidification of pure aluminum without and with a magnetic field has been investigated by differential thermal analysis (DTA). DTA curves showed that the nucleation temperature of pure aluminum was decreased as a magnetic field strength increased although its melting process was almost not influenced. The nucleation suppression could be attributed to the increase of the solidliquid interfacial...

2014
Xin Luo

This thesis focuses on studies of nano-scale materials in electronic packaging applications with respect to following aspects: surface analysis of nano-scale oxide of lead-free solder particles, and thermal performance and mechanical property studies of nano-scale fiber and metal composite-based thermal interface materials. The composition and thickness of the solder oxide have a direct impact ...

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