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All Journal INDONESIAN JOURNAL OF APPLIED PHYSICS
S, Subaer
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Astronomy Energy Materials Science & Nanotechnology Physics

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Student’s Creativity Profile with Base on Thinking Model for Physics Problem Solving Bacong, Hartono; S, Subaer
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.250

Abstract

A research that aims to determine the profile of student’s creative who have a concrete sequential thinking styles, sequential abstract, concrete random, and abstract random in solving physics problems at the State University of Makassar. This study is a qualitative research. The sample was taken by using purposive random sampling technique. The data obtained were analyzed using Miles and Hubermann model. The results describe creativity of student thinking style in solving physics problems. The conclusion shows that the concrete sequential of thinking’s style "less creative", abstract sequential "quite creative", random concrete "less creative" and abstract random "creative" in solving physics problems at the State University of Makassar
Sintering Temperature Effect to the Synthesis of SiC Produced from Rice Husk ash and 2B Graphite Pencils Irfanita, Resky; Ansar, Asnaeni; Pratiwi, Ayu Hardianti; J, Jasruddin; S, Subaer
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.258

Abstract

The objective of this study is to investigate the effect of sintering temperature on the synthesis of SiC produced from rice husk ash (RHA) and 2B graphite pencils. The SiC was synthesized by using solid state reaction method sintered at temperatures of 750°C, 1000°C and 1200°C for 26 hours, 11.5 hours and 11.5 hours, respectively. The quantity and crystallinity level of SiC phase were measured by means of Rigaku MiniFlexII X-Ray Diffraction (XRD). The microstructure of SiC was examined by using Tescan Vega3SB Scanning Electron Microscopy (SEM). The XRD results showed that the concentration (wt%) of SiC phase increases with the increasing of sintering temperature. SEM results showed that the crystallinity level of SiC crystal is improving as the sintering temperature increases
Co-Authors Ansar, Asnaeni Bacong, Hartono Irfanita, Resky J, Jasruddin Pratiwi, Ayu Hardianti