Archive:: American Journal of Materials Synthesis and Processing:: Science Publishing Group

Volume 3, Issue 3, September 2018

Study on Mesoporous Al-SBA-15 with Enhanced Acidity and Hydrothermal Stability for Heavy Oil Hydrocracking Conversion

Lianhui Ding, Hanaa Habboubi, Essam Sayed, Sitepu Husinsyah, Hameed Badairy, Rasha Alghamdi

Issue: Volume 3, Issue 3, September 2018

Pages: 39-46

Received: 9 August 2018

Accepted: 20 August 2018

Published: 28 September 2018

DOI: 10.11648/j.ajmsp.20180303.11

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Abstract: To increase heavy oil conversion by hydrocracking, the larger pore opening mesoporous materials with enhanced acidity and hydrothermal stability are required. A series of mesoporous Al-SBA-15 was studied in acid-free and different HCl concentration solutions with various initial SiO₂/Al₂O₃ molar ratio. The final product samples were characterized w... Show More

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Separation of Surface Hardened Glass with Non-ablation Laser Technique

Zhongke Wang, Wei Liang Seow, Hongyu Zheng, Cai Xue

Issue: Volume 3, Issue 3, September 2018

Pages: 47-55

Received: 9 July 2018

Accepted: 28 September 2018

Published: 6 November 2018

DOI: 10.11648/j.ajmsp.20180303.12

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Abstract: The study investigated cutting of glass by non-laser ablation technique through non-linear absorption laser pulses induced optical breakdown, melting and plasma expansion throughout the glass thickness from bottom to top. Picosecond near-infrared laser pulses were used. The laser beam was focused with an objective lens with numerical aperture (NA) ... Show More

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