Analisis Pengaruh Penambahan Silikon Karbida Terhadap Sifat Mekanik dan Termal Pada Alumina Refractory Brick

Sunni, Mufasya Arvel (2024) Analisis Pengaruh Penambahan Silikon Karbida Terhadap Sifat Mekanik dan Termal Pada Alumina Refractory Brick. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengolahan logam, keramik, dan semen merupakan beberapa sektor utama industri yang bergantung pada material refraktori. Material refraktori adalah bahan yang tahan terhadap suhu tinggi, abrasi, dan korosi, sehingga menjadi komponen kritis dalam berbagai aplikasi industri. Salah satu material refraktori merupakan alumina dan kaolin yang mengandung alumina merupakan salah satu mineral lempung yang paling melimpah di seluruh dunia, sehingga dapat mengurangi biaya produksi. Jenis batu bata yang memiliki daya dukung yang baik adalah batu bata tahan api. Batu bata tahan api tahan lama, kuat dan padat karena diproses dengan cara dibakar pada suhu 1100°C. Untuk meningkatkan sifat bata alumina pada kebutuhan refraktori, diperlukan hal-hal yang dapat meningkatkan kualitas dan kinerja dari bata alumina salah satunya yaitu penambahan silikon karbida untuk meningkatkan kekuatan dan ketahanan aus refraktori. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan silikon karbida terhadap sifat fisis, mekanik, dan kestabilan termal bata alumina tahan api. Bata alumina tahan api dibuat dengan adanya variasi komposisi dari kaolin dan silikon karbida. Material yang digunakan pada penelitian ini dilakukan pengujian karakterisasi dengan X-ray diffraction (XRD) pada kaolin dan pasir kuarsa. Juga dilakukan uji Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX), Thermogravimetric Analysis (TGA), bulk density, kuat tekan, ketahanan aus, dan konduktivitas termal. Dari hasil penelitian, diperoleh nilai bulk berdasarkan ASTM C 134 sampel K50S7 sebesar 3,27 gr/cm³. Nilai kuat tekan berdasarkan ASTM C 133 pada sampel K45S7 sebesar 5,54 MPa. Nilai ketahanan aus berdasarkan ASTM C 704 pada sampel K45S7 sebesar 2,37 cm³. Nilai konduktivitas termal berdasarkan standar ASTM C 1113 pada sampel K45S5 sebesar 0.37 W/mk. Penambahan kandungan silikon karbida meningkatkan nilai sifat mekanik dan kestabilan termal.
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Metal processing, ceramics, and cement are some of the main industrial sectors that depend on refractory materials. Refractory materials are materials that are resistant to high temperatures, abrasion and corrosion, making them critical components in various industrial applications. One of the refractory materials is alumina and kaolin which contains alumina is one of the most abundant clay minerals throughout the world, so it can reduce production costs. The type of brick that has good bearing capacity is refractory brick. Refractory bricks are durable, strong and dense because they are processed by firing at a temperature of 1100°C. To improve the properties of alumina bricks for refractory needs, things are needed that can improve the quality and performance of alumina bricks, including the addition of materials such as zirconia, silicon carbide or magnesia to increase the strength and wear resistance of refractories. This research aims to analyze the effect of variations in the composition of kaolin and quartz sand and the addition of silicon carbide on the physical, mechanical, and thermal stability propertiesof refractory alumina bricks. Refractory alumina bricks are made with variations in the composition of kaolin and silicon carbide. The materials used in this research were tested for characterization using X-ray diffraction (XRD) on kaolin and quartz sand. Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX), Thermogravimetric Analysis (TGA), bulk Density, compressive strength, wear resistance and thermal conductivity tests were also carried out. From the research results, the bulk value based on ASTM C 134 K50S7 sample was 3.27 gr/cm³. The compressive strength value based on ASTM C 133 for the K45S7 sample is 5.54 MPa. The wear resistance value based on ASTM C 704 for sample K45S7 is 2.37 cm³. The thermal conductivity value based on ASTM C 1113 standards for the K45S5 sample is 0.37 W/mk. The addition of silicon carbide content increases the mechanical properties and thermal stability.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Alumina, Bata Tahan Api, Silikon karbida, Kestabilan Termal Alumina, Refractory Brick, Silicon Carbide, Thermal Stability
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA418.16 Materials--Testing. T Technology > TA Engineering (General). Civil engineering (General) > TA455.S6 Soil (Materials of engineering and construction) T Technology > TP Chemical technology > TP155.7 Chemical processes.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Mufasya Arvel Sunni
Date Deposited:	02 Aug 2024 03:30
Last Modified:	24 Sep 2024 03:48
URI:	http://repository.its.ac.id/id/eprint/110906

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