FATHYA ELIZA ROSYADI, . (2016) PEMBENTUKAN DAN KARAKTERISASI STRUKTUR DAN SIFAT TERMAL SISTEM KACA (70-x)P2O5-30MgO-xZnO DENGAN TEKNIK MELT QUENCHING. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.
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Abstract
Telah dibuat kaca dengan komposisi (70-x)P2O5-30MgO-xZnO dengan variasi konsentrasi ZnO dari 0 sampai 15 mol% menggunakan teknik meltquenching. Sampel yang dibuat memiliki komposisi MgO tetap yaitu 30 mol%. Sifat termal dan struktur kaca diteliti dengan differential thermal analysis (DTA),X-Ray Diffraction (XRD), and Fourier-transformed infrared (FTIR). Hasil XRD menunjukan bahwa kaca merupakan amorf. Didapatkan nilai stabilitas termal (∆T) meningkat seiring dengan penambahan ZnO sampai 10 mol% kemudian menurun dengan penambahan mol %ZnO. Komposisi 5mol% dari ZnO memiliki nilai ∆T dan Hurby (H) tertinggi yang artinya paling stabil diantara seluruh sampel. Sedangkan, hasil FTIR menyatakan bahwa bilangan gelombang dari P-O-P meingkat dan P=O berkurang dengan penambahan ZnO. Dari informasi ini ddapatkan nilai BO meningkat dan NBO berkurang seiring dengan peningkatan ZnO. (70-x)P2O5-30MgO-xZnO glasses containing different concentrations of ZnO ranging from 0 to 15 mol% were prepared by the melt-quenching technique. The sample had a fixed MgO content of 30%. The thermal and structural properties of these glasses were investigated by means of differential thermal analysis (DTA),X-Ray Diffraction (XRD) and Fourier-transformed infrared (FTIR). Result from XRD show that the glass are amorphous. It has been found that the thermal stability (∆T) increase as ZnO was added into the glass sample and decreased afterward. Composition of 5 % ZnO possesses the highest value of ∆T and Hurby’s value (H) of all samples which mean that the sample is the most stable. Meanwhile, FTIR test demonstrate that the wavenumber of P-O-P increase and P=O reduces as the ZnO content increase. From this information, the number of BO increase and NBO decrease as the ZnO content increase.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Additional Information: | 1) Dr. Esmar Budi, M.T 2) Dr. Mangasi A Marpaung, M.Si |
| Subjects: | Sains > Fisika |
| Divisions: | FMIPA > S1 Fisika |
| Depositing User: | sawung yudo |
| Date Deposited: | 04 Apr 2022 06:21 |
| Last Modified: | 04 Apr 2022 06:21 |
| URI: | http://repository.unj.ac.id/id/eprint/25778 |
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