Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Ibrahim Purawiardi"'
Publikováno v:
Rekayasa Mesin, Vol 13, Iss 3, Pp 763-772 (2022)
In this study, commercial titanium rod was treated by equal-channel angular pressing (ECAP) with Bc route and two passes. This treatment was then evaluated by means of x-ray diffraction (XRD) analytical method. The evaluation was concentrated in crys
Externí odkaz:
https://doaj.org/article/04eda24d76694ae6ae8dbcff620a8a3e
Autor:
Widya Fatriasari, Muhammad Rasyidur Ridho, Azizatul Karimah, Sudarmanto, Ismadi, Yusup Amin, Maya Ismayati, Muhammad Adly Rahandi Lubis, Nissa Nurfajrin Solihat, Fahriya Puspita Sari, Danang Sudarwoko Adi, Faizatul Falah, Apri Heri Iswanto, Fajarudin Ahmad, Nyoman J. Wistara, Ibrahim Purawiardi, Ahmad Fudholi
Publikováno v:
Journal of Natural Fibers, Vol 19, Iss 16, Pp 14396-14413 (2022)
The pseudostem of banana (Musa sp.) has a high value for fiber. In this study, we characterized two wild Musa acuminata, i.e., ssp. malaccensis (LIPI-030) (M1) and var. breviformis (LIPI-218) (M3), an accession of diploid M. acuminata cultivar “Pis
Externí odkaz:
https://doaj.org/article/f25dc0cccb9540708cb032f7efe0b737
Publikováno v:
Jurnal Kimia dan Kemasan, Vol 40, Iss 1, Pp 1-8 (2018)
Membran elektrolit polimer pada baterai litium ion berfungsi sebagai media transport ion dan sebagai separator antara anoda dan katoda. Dalam penelitian ini, telah dilakukan sintesis membran elektrolit polimer LiBOB (Lithium Bis Oksalato Borate denga
Externí odkaz:
https://doaj.org/article/b4ed11382a5c4297be7acb3473836562
Publikováno v:
Journal of Pure and Applied Chemistry Research, Vol 6, Iss 3, Pp 228-237 (2017)
The electrolyte membrane serves as ions medium transport and as a separator between the anode and cathode in lithium ion battery. The polymer used for the electrolyte membrane must have sufficiently high mechanical strength to withstand the pressure
Externí odkaz:
https://doaj.org/article/e6b8523b6b2842938ad2fc1f55f52136
Autor:
Etty Marti Wigayati, Christin Rina Ratri, Ibrahim Purawiardi, Fadli Rohman, Titik Lestariningsih
Publikováno v:
Indonesian Journal of Chemistry, Vol 15, Iss 3, Pp 242-247 (2015)
Lithium bis (oxalate) borate or LiBOB is an active material used as the electrolyte for lithium battery application. LiBOB (LiB(C2O4)2) powder was prepared from LiOH, H2C2O4 and H3BO3. The employed method was solid state reaction. LiBOB powder produc
Externí odkaz:
https://doaj.org/article/002056079e1f4733a49b7b9ec23c8f12
Autor:
Ibrahim Purawiardi
Publikováno v:
Jurnal Teknologi Mineral dan Batubara. 17:77-85
Pasir besi titan Yogyakarta mengandung berbagai jenis mineral baik berupa mineral bijih (mengandung Fe dan Ti) maupun mineral non-bijih (tidak mengandung Fe dan Ti). Mineral-mineral tersebut dapat diidentifikasi menggunakan difraksi sinar-x (XRD). Na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3573e65cb3e3b5a3a124b70e4b0dc053
https://doi.org/10.30556/jtmb.vol17.no2.2021.1161
https://doi.org/10.30556/jtmb.vol17.no2.2021.1161
Publikováno v:
Jurnal Teknologi Mineral dan Batubara. 16:15-21
Pasir besi titan dari Yogyakarta dikarakterisasi menggunakan portable x-ray fluorescence (pXRF) dengan algoritma soil (W- tube , 40 kV) dan alloy (Rh- tube , 50 kV). Hasil karakterisasi menggunakan algoritma soil menunjukkan kandungan unsur-unsur Fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75cbdccf91d02088fc21cf66f1363df4
https://doi.org/10.30556/jtmb.vol16.no1.2020.1064
https://doi.org/10.30556/jtmb.vol16.no1.2020.1064
Autor:
Siska Prifiharni, Ahmad Royani, Lutviasari Nuraini, Sundjono Sundjono, Hadi Gunawan, Ibrahim Purawiardi, Joko Triwardono, Gadang Priyotomo
Publikováno v:
Walailak Journal of Science and Technology (WJST). 18
The investigation of atmospheric corrosion of mild carbon steel as representative of offshore infrastructure has been carried out in the marine tropical of Pelabuhan Ratu, West Java, Indonesia. They are exposed up to 76 days of periods, and their cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab83398e639441ae01e409a48e888c17
https://doi.org/10.48048/wjst.2021.9667
https://doi.org/10.48048/wjst.2021.9667
Autor:
R. Ibrahim Purawiardi
Publikováno v:
Majalah Ilmiah Pengkajian Industri; Vol 14, No 1 (2020): Majalah Ilmiah Pengkajian Industri; 77-86
Riset dan pengembangan baterai lithium mulai banyak dilakukan di Indonesia sejak awal dekade 2000-an. Diantara salah satu material yang dikembangkan adalah bahan aktif katoda LiFePO 4 ,dengan harapan bahwa seluruh bahan baku pembuatan LiFePO 4 dipero
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a76fd66bb2573f6367c0582e33e812ea
http://ejurnal.bppt.go.id/index.php/MIPI/article/view/3785
http://ejurnal.bppt.go.id/index.php/MIPI/article/view/3785
Publikováno v:
AIP Conference Proceedings.
Co-Cr-Mo alloys are widely used in the biomedical field especially for implant materials. The recommended Co-Cr-Mo alloy has to be a ɣ-Co phase. This phase has a specific crystal structure characteristic, that is face-centered cubic (FCC). The solid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9d3a47bde4bd977f58235852c377c69
https://doi.org/10.1063/5.0001930
https://doi.org/10.1063/5.0001930