Sintering material Zn; Mg; TiO; variasi penambahan Vo dengan metode reaksi padat

Nisa, Riska Ainun (2015) Sintering material Zn; Mg; TiO; variasi penambahan Vo dengan metode reaksi padat. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Telah dilakukan percobaan pembuatan keramik Zinc Titanate (ZnTiO3) dengan menambahkan dopan V2O5 sebagai bahan cair yang berfungsi untuk menurunkan suhu sintering samapai suhu dibawah 1000°C. Pembuatan bahan keramik ZntiO3 dilakukan dengan metode reaksi padat (Solid State). Proses pencampuran bahan menggunakan ballmil. Selanjutnya sampel tersebut di kalsinasi pada suhu 850°C dengan waktu penahanan 2 jam, dicetak menjadi pelet disk dan disinter pada suhu 1000°C, 1100°C selama 4h dan 8h dan pada suhu 900°C selama 24h. Dari data keseluruhan, variasi waktu sintering tidak menunjukkan perubahan nilai densitas yang mencolok. Namun variasi penambahan zat aditif V2O5 menunjukkan bahwa semakin banyak V2O5 yang ditambahkan kedalam material, menghasilkan nilai densitas semakin tinggi. Namun sampel dengan variasi suhu 900°C memiliki nilai densifikasi yang paling baik karena waktu penahanan yang paling lama yaitu 24h. Material yang memiliki waktu penahanan yang paling lama dan densitas paling besar yang memiliki konstanta dielektrik yang paling baik. Didapatkan nilai konstanta dielektrik untuk masing masing sampel ZMT3 900°C murni,1%24h, 2%24h, dan 4%24h berturut-turut yaitu memiliki nilai permitvitas relativitas (εr) sebear14,5; 23,8; 23,4; 26,8. Hal ini dapat terjadi, diduga karena dengan keadaan sampel yang mempunyai densitas tinggi maka didalamnya hanya terdapat sedikit close pore. Variasi komposisi dan ukuran partikel berpengaruh pada kekuatan dielektrik, dielektrik loss, densitas dan porositas semakin kecil ukran partikel maka kekuatan dielektrik semakin tinggi dan rugi dielektrik semakin rendah. =============================================================================================== Experiment on ceramic Zinc Titanate (ZnTiO3) manufacture has been conducted by adding dopants V2O5 as liquid material to lower sintering temperature below 1000°C. Production of ceramic ZnTiO3 is done with solid reaction method (SolidS). Material mixing process use Ballmil with rotary frequency of 250rpm for 4 hours. The sample is calcined at 850°C with 2 hours holding time, molded into a disc pellets and sintered at 1000°C, 1100°C for 4 hours and 8 hours, and at 900°C temperature for 24 hours. From the entire data, this research shows that sintering time variation has no flashy changes in density values. However, addition of additives V2O5 variation shows that the more V2O5 were added to the material, the higher density values became. But samples with variations in temperature of 900°C has the best densification value because it has the longest holding time, which is 24 hours. In this synthesis material, material that has the longest holding time and the highest density is material which has the best dielectic constant. Dielectric constant values obtained for each sample ZMT3 pure 900°C, 1% 24h, 24h 2% and 4% respectively 24h which has a value of relativity permittivity (er) of 14.5; 23.8; 23.4; 26.8. This is happen presumably due to the circumstances that have a high density samples, then there are only a little close pore which can cause a reduction in long polarization so that the value of the dielectric constant is also high. Variation of composition and particle size effect on dielectric strength, dielectric loss and density and the smaller particle size, the higher the dielectric strength and the lower dielctric loss become.

Item Type: Thesis (Undergraduate)
Additional Information: RSFi 371.373 Nis s
Uncontrolled Keywords: densitas,dielektrik, komposisi, zinc titanate.
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials.
Divisions: Faculty of Science > Physics > 45201-(S1) Undergraduate Thesis
Depositing User: Mr. Marsudiyana -
Date Deposited: 28 Nov 2019 04:21
Last Modified: 28 Nov 2019 04:21
URI: http://repository.its.ac.id/id/eprint/72099

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