Potential of basalt rock as a filler in polymer composite through the process of melting basalt combined with slow cooling

Birawidha, David Candra; Isnugroho, Kusno; Hendronursito, Yusup; Amin, Muhammad; Muttaqii, Muhammad Al; Alimuddin, Zulfikar; Rajagukguk, Tumpal Ojahan

doi:10.1063/5.0111016

Cited by 1 publication

(1 citation statement)

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“…Basalt stone from East Lampung is characterized by having holes around the stone, blackish brown on the outside and blackish ash on the inside (Hendronursito et al, 2018). One of the advantages of basalt rock is that the mechanical properties of the processed products can be modified as needed through the heat treatment method (Birawidha et al, 2021). In the case of basalt, processing it by applying slow cooling can provide mechanical properties that are more resilient in accepting impact loads, conversely by giving faster cooling, surface hardness can increase but has a high degree of brittleness.…”

Section: Introductionmentioning

confidence: 99%

The effect of composition and holding time on glaze production using basalt rock as a base

Birawidha,

Miswanto,

Setiawan

et al. 2023

Physicochem. Probl. Miner. Process.

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This research studied the potential use of local basalt and feldspar from Lampung Province, Indonesia, as glaze materials. Frit(s) are composed of changing basalt-to-feldspar weight ratios of A (30:70), B (50:50), C (70:30), and D (100:0) w/w%. The added 20% boric acid to the total weight reduces the process temperature to 1,000oC with holding times of 1, 4, and 8 hr(s). Based on the chemical composition test of the specimen, the four variations of the sample have SiO2 content above 40%, and the average SiO2/Al2O3 ratio is 4 and 5, which is usually a low-alumina glaze that will cause a glossy effect and have an amorphous structure. At point 2theta 29o, amorphous forms. Quartz (SiO2), albite (NaAlSi3O8), anorthite (CaAl2Si2O8), and coesite (SiO2) phases were discovered in the glaze specimens. The anorthite phase in glass-ceramic glaze gives a transparent glaze color due to the amorphous glassy phase formed during heat treatment. The findings of this study suggest that local materials based on basalt and feldspar may be used as glaze materials to provide a smooth texture and surface; the glaze layer is evenly distributed, can follow the full surface contour of the test specimen, and has low porosity.

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Section: Introductionmentioning

confidence: 99%