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All Journal Pillar of Physics: Jurnal Berkala Ilmiah Fisika
Phobi Juwandari Putri
Jurusan Fisika, Universitas Negeri Padang, Sumatera Barat, Indonesia
Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Analisis struktur bijih mangan hasil proses sinter yang terdapat di Nagari Kiawai Kecamatan Gunung Tuleh Kabupaten Pasaman Barat (Analysis of the structure of the manganese ore resulting from the sintering process in Nagari Kiawai, Gunung Tuleh District, West Pasaman Regency) Phobi Juwandari Putri; - Ratnawulan; - Gusnedi
PILLAR OF PHYSICS Vol 5 (2015)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (512.379 KB) | DOI: 10.24036/1835171074

Abstract

The Research to analyze the structure of manganese ore sinter processes occurring in the area Kiawai Sub Distric of Gunung Tuleh Regency of west Pasaman. In this research use XRF and XRD characterization tool. The results showed a transformation in the structure. Changes in the structure of the manganese ore minerals may occur as a result of warming temperatures. Structural changes that occur are tetragonal pyrolusite structure with a unit cell a = b 4.4000 Å and c = 2.8700 Å to the cubic bixbyite structure with a unit cell a = b = c = 9.4091 Å and then to the tetragonal hausmannite structure a = b = 5.7630 Å and c = 9.4560 Å. On the other hand also occur that the incorporation of bixbyite with a Rhodonite. Changes in the unit cell obtained by unit cell a = 7.6140 b = 11.8480 and c = 6.6990 the new braunite structure becomes tetragonal unit cell with  a = b = 9.4200 and c = 18 670
Co-Authors Gusnedi Gusnedi