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Sintesis Lapisan TiO2 Pada Substrat ITO Menggunakan Metode Elektrodeposisi dan Spin Coating Arista, Anggia; Dahlan, Dahyunir; Syukri, Syukri
Jurnal Ilmu Fisika Vol 8, No 1 (2016): JURNAL ILMU FISIKA
Publisher : Jurnal Ilmu Fisika

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Abstract

Telah dilakukan sintesis lapisan tipis TiO2 menggunakan metode elektrodeposisi dan spin coating. Elektrodeposisi menggunakan larutan elektrolit 0,25 M TiCl3. Dalam penelitian ini juga dilakukan variasi larutan elektrolit dengan penambahan CTAB, PEG dan penambahan H3BO3. Selanjutnya lapisan TiO2 disintesis menggunakan metode spin coating yang dilakukan di atas lapisan TiO2 setelah elektrodeposisi. Larutan prekusor yang digunakan adalah Titanium Butoxide (Ti(OC4H9)4 dengan waktu aging larutan 48 jam. Hasil karakterisasi SEM menunjukkan elektrodeposisi lapisan tipis TiO2 dengan penambahan CTAB dan PEG menghasilkan morfologi permukaan yang homogen dan berpori pada lapisan TiO2. Berdasarkan hasil karakterisasi UV-Vis, energi gap TiO2 pada sampel yang disintesis menggunakan metode elektrodeposisi adalah  3,86 eV, sedangkan nilai energi gap yang didapat pada sampel menggunakan metode spin coating adalah 3,18 eV.
IDENTIFIKASI FAKTOR PENYEBAB KERETAKAN PADA PLATFORM MODULE (H-BEAM) MENGGUNAKAN METODE NDT (NON DESTRUCTIVE TEST) DI PT MULTI GUNUNG MAS BATAM Arista, Anggia; Prasetyo, Rony
JURNAL REKAYASA SISTEM INDUSTRI Vol 4 No 1 (2018): (November 2018)
Publisher : Universitas Putera Batam

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Abstract

An Offshore platform module is used as fondation to support and sustain the weigt of all activities that accur on the module. The platform is a combination of a large H-Beam that incorporates to welding process. The vibration mechine and the process can lead to crack (fracture) at H-beam welding and will continue to propagate and be fatal. As a precaution to quality control tool need does not spoil the outcome of the H-beam are assemble by using of NDT (Non Destructive Test) method and ultrasonic techniques as cracking defect detection (crack) which occurs in the H-beam. The variables used are metal material cracks, material cracking factors and frequency of cracking factors. To analyze the cracking are using pareto chart and fishbone diagram. The relationship between the factors that cause disability to defects caused using chi squere calculation. The results of this study are that there are 4 factors that cause defects, namely the welding flame is too small, the welding flame is too large, the material is too thick and dirty in the welding area. The conclusion of this study requirement is material strenght rift in the welding H-beam process with the level of comparison between chi squere count 141,83 is greater than the chi squere table 21,66 and with degrees of free 9, and with the Contingency coefficient of 0,89 which indicates ther is a strong influence among the causes of the rift.
PENERAPAN KUALITAS DAN HARGA TERHADAP KEPUTUSAN PEMBELIAN RUMAH OLEH KONSUMEN PADA PT PUTERA KARYASINDO PRAKARSA BATAM Prasetyo, Rony; Arista, Anggia
JIM UPB (Jurnal Ilmiah Manajemen Universitas Putera Batam) Vol 6 No 2 (2018): JIM UPB Volume 6 No 2 2018
Publisher : Universitas Putera Batam

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Abstract

The focus of this study is to determine whether the quality of products, product prices can influence the decision to purchase the home either partially or simultaneously by consumers in PT. Putera Karyasindo Prakarsa - Batam. the sample to be used in this study is as many as 98 respondents. This study suspects Partially Product Quality variables positively and significantly affect consumer purchasing decisions in PT. Putera Karyasindo Prakarsa with t count value 4,084 and significance 0.000.  Partially Product Price variable positively and significantly influence to Consumer Purchase Decision in PT. Putera Karyasindo Prakarsa with t value 4,367 and significance 0,000. Simultaneously variable Product Quality and Product Price influence together to Purchasing Decision of consumer in PT. Putera Karyasindo Prakarsa with F value count 73,504 with significance level 0.000.  The result of detrmination coefficient (R2) or the amount of solution that can be given the variable of quality and price (independent variable) to the problem ie the decision of home purchase by consumer (Dependent variable) equal to 0,607 or 60,7% while the rest 39,3% investigated in this study.