Siam Physics Congress 2017

Session

A13: Material Physics

25 May 2017, 13:20

Ballroom 2

Conveners

A13: Material Physics

• Adisak Boonchun
• jiraroj T-thienprasert (Kasetsart University)

31. Mechanical and Electrical Properties of Fly Ash Geopolymer Composited with Short Carbon Fibre

Ms Panjasil Payakaniti (Khon Kaen University)

25/05/2017, 13:30

Material Physics and Functional Materials

Oral

Workability, compressive strength and electrical properties of high calcium (Class C) fly ash geopolymer composited with short carbon fibre (CF) were investigated. The liquid to ash (L/A) ratio was kept at 0.4, while the carbon fibre concentration, curing temperature and age of the specimens were varied. The fibre content was in a range of 0-0.5%CF. The curing temperature was 25°C and 60°C and...

59. Giant dielectric properties with excellent temperaturestability of (Ga0.5Nb0.5)xTi1-xO2 ceramics

Mr Wattana Tuichai (KhonKaen University)

25/05/2017, 13:45

Material Physics and Functional Materials

Oral

In this work, we investigate the giant dielectric properties of (Ga0.5Nb0.5)xTi1-xO2(where x=0.01, 0.025, 0.05 and 0.1) prepared by a solid state reaction method.The phase composition,microstructure,and oxidation statesare characterized by X-ray diffraction, field-emission scanning electron microscopy and X-ray photoelectron spectroscopy, respectively.The single phase of rutile-TiO2with dense...

117. Fabrication and Properties of polyacrylic acid by ionic surfactant disturbance method

Suriya Lawan (Mahidol University)

25/05/2017, 14:00

Material Physics and Functional Materials

Oral

The formation of polymeric materials can be achieved by several methods such as melting and casting, screw extrusion, cross-linking of resin or rubber in a mold, and so on. In this work, the polyacrylic acid is formed by using the emulsion disturbance method. Despite extensively used in the colour painting and coating industries, acrylic emulsion can be processed into a foam and powder...

158. Effects of Co‒Doping on Dielectric and Electrical Responses of CaCu$_3$Ti$_4$$_-$$_x$(Nb$_1$$_/$$_2$In$_1$$_/$$_2$)$_x$O$_1$$_2$ Ceramics

Mr Jakkree Boonlakhorn (Khon Kaen University)

25/05/2017, 14:15

Material Physics and Functional Materials

Oral

In this work, CaCu$_3$Ti$_4$$_-$$_x$(Nb$_1$$_/$$_2$In$_1$$_/$$_2$)$_x$O$_1$$_2$ ceramics with x = 0, 0.025, 0.05, 0.10, and 0.20 were prepared by a conventional solid state reaction method. Changes in crystal structure, microstructure, dielectric, and electrical properties were systematically investigated. The main phase of CaCu$_3$Ti$_4$O$_1$$_2$ ceramic was clearly observed in all the...

213. Characterization and Electrochemical Properties of Cu$_2$P$_2$O$_7$ Nanoparticles Prepared by Hydrothermal Method

Mr Attaphol Karaphun (Khon Kaen University)

25/05/2017, 14:30

Material Physics and Functional Materials

Oral

Copper phosphate (Cu$_2$P$_2$O$_7$) nanostructures were synthesized by hydrothermal method. The precursor products were calcined at 500, 600 and 700 oC in air for 3 h. Thermogravimetric/differential thermal analysis (TG/DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) were used to study the phase formation, crystalline...

274. Hydrothermal synthesis and characterization of hyperbranched BiVO$_4$ microstructure and its applications

Dr Nuengruethai Ekthammathat (Program of Chemistry, Faculty of Science and Technology, Bansomdejchaopraya Rajabhat University)

25/05/2017, 14:45

Material Physics and Functional Materials

Oral

Bismuth vanadate (BiVO$_4$) microstructures were successfully synthesized by a hydrothermal method at 200 °c for 24 h. The phases and morphologies of the products were characterized by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED) and photoluminescence (PL) spectroscopy....