Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Situmeang, Rudy"'
Publikováno v:
Ceramics-Silikáty, Vol 66, Iss 3, Pp 365-373 (2022)
Composites of silver-doped rice husk silica using sol-gel method has been conducted. Silver nitrate and rice husks were used as resources. Composites were sintered at 850°C and then characterized using Infrared Spectrophotometer (FTIR), x-ray diffra
Externí odkaz:
https://doaj.org/article/bbdf567ae43b40cabb98e8579132059d
Publikováno v:
Ceramics-Silikáty, Vol 66, Iss 2, Pp 167-177 (2022)
This research characterises the structure and physical properties of silver/silica (Ag/SiO₂) composites using silver nitrate (AgNO₃) and rice husk silica sols as precursors. The Ag/SiO₂ composites were produced with different AgNO3 concentratio
Externí odkaz:
https://doaj.org/article/8a703157e9104e31ad4787f773ed731a
Autor:
Amrulloh, Hanif a, ⁎, Kurniawan, Yehezkiel Steven b, Ichsan, Chairul c, Jelita, Jelita d, Simanjuntak, Wasinton e, Situmeang, Rudy Tahan Mangapul e, Krisbiantoro, Philip Anggo f, g
Publikováno v:
In Colloids and Surfaces A: Physicochemical and Engineering Aspects 20 December 2021 631
Publikováno v:
Ceramics-Silikáty, Vol 65, Iss 3, Pp 215-223 (2021)
This research characterises the structure and micro-structure of asphalt-silica composites heated to a temperature of 150 °C, as well as their physical and mechanical properties. The asphalt and silica mass ratios were varied into 10:90, 15:85, 20:8
Externí odkaz:
https://doaj.org/article/d10662e9587e48f68f02104fa9884593
Publikováno v:
AIP Conference Proceedings; 2024, Vol. 2970 Issue 1, p1-5, 5p
Publikováno v:
AIP Conference Proceedings; 2024, Vol. 2970 Issue 1, p1-6, 6p
Publikováno v:
AIP Conference Proceedings; 2024, Vol. 2970 Issue 1, p1-7, 7p
Publikováno v:
AIP Conference Proceedings Online; September 2024, Vol. 2970 Issue: 1 p060008-60013, 6p
Autor:
Situmeang, Rudy T. M.
The photoelectron spectra of a series of ketone compounds have been investigated in the gas phase. Core ionization energies were measured to probe the effects of molecular size and connectivity number on core ionization energies. It was found that co
Externí odkaz:
http://hdl.handle.net/1957/35202
Publikováno v:
Ceramics-Silikáty, Vol 63, Iss 3, Pp 277-286 (2019)
The composites were prepared with a ratio of bitumen to silica of 1:0, 1:1.5, 1:1.6, 1: 1.7, 1:1.8, 1:1.9 and 1:2 by weight, and calcined at the temperature of 150 °C for 6 hours. The structural and microstructural characteristics of the bituminous
Externí odkaz:
https://doaj.org/article/072bf92e8e844611b85bdacb96232ea4