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«¹„¬µ„µ¦ ´—Á„¨µÂÁ¦¸ ¥šÁª¨—r°ŠÁŽ¦µ¤·„ MgTiO3
Rietveld Refinement Study of MgTiO3 Ceramic Using X-ray Powder Diffraction Data
ž¦³·˜ ‡Š¦´˜œr1* ¨³¢µ°¸Ž³®r °µÂª2
Prachit Khongrattana1*and Fa-e-sha Aware2
š‡´—¥n °
ǦŠ¦oµŠŸ¨¹ „ÁŽ¦µ¤·„ MgTiO3 ŗo¦´„µ¦ ´ —Á„¨µÃ‡¦Š¦oµŠÂÁ¦¸¥šÁª¨—r‹µ„ o °¤¼¨„µ¦Á¨¸Ê¥ªÁœ °Š
¦´Š¸Á°„Žr Ÿ¨„µ¦ ´ —Á„¨µ¤¸‡nµž{ ‹‹´¥¦´Š¸Á°„Žr ³šo °œÂÂ¦„„rÁž}œ¦o°¥¨³ 11.86 ¨³¡ªnµÁŽ¦µ¤· „ MgTiO3 ¤¸
ǦŠ¦oµŠŸ¨¹„¦°¤Ã±¸ —¦´¨ ¦³¥³®nµŠ¦³®ªnµŠ °Š“µœ®¨´„ a = b = 5.0532(2) o
A c = 13.8947(8) o
A ¨³¤¸
ž¦·¤µ˜¦ V = 307.36 o
A 3.
‡ÎµÎµ‡´ : „µ¦ ´—Á„¨µÂÁ¦¸¥šÁª¨—r ¤„œ¸ÁŽ¸¥¤˜· ˜µÁœ˜
Abstract
The crystal structure of MgTiO3 has been refined using Rietveld analysis of X- ray powder diffraction
data. The refinement procedure was stopped the intensity residual RB = 11.86% has been reached. MgTiO3
crystallizes in a rhombohedral, space group R-3, with the lattice parameter a = b = 5.0532(2) o
A , c = 13.8947(8)
o
A and volume V = 307.36 o
A 3.
Keywords: Rietveld refinement, MgTiO3
1°µ‹µ¦¥r £µ‡ª·µ¢d ·„r ‡–³ª·š¥µ«µ˜¦r ¤®µª·š¥µ¨´¥š´„¬·– Š ¨µ 90000
Lecturer, Department of Physics, Faculty of Science, Thaksin University, Songkhla, 90000.
Corresponding author : Ú¦«´¡šr/Ú¦µ¦ 0 7444 3960 ˜n° 2415 E-mail: prachit2@gmail.com
2œ· ·˜¦³—´ž¦·µ˜¦¸ µ µª·µÁ°„ª·š¥µ«µ˜¦r-¢d ·„r ¤®µª· š¥µ¨´¥š´„¬·– Š ¨µ 9000
Bachelor's Degree Student, Science-Physics Curriculum, Thaksin University, Songkhla, 90000