Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating
Porous nanocrystalline silicon (pnc-Si) membrane is mainly studied as a blood filtration membrane, mimicking the glomerulus filtration membrane of a human kidney. However, the pnc-Si material itself is not hemocompatible and enormous membrane area to thickness ratio makes the membrane to be easily...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/16173/ http://journalarticle.ukm.my/16173/1/20.pdf |
| _version_ | 1848813984944226304 |
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| author | Rhonira Latif, Muhammad Fahmi Jaafar, Mohd Faizal Aziz, Burhanuddin Yeop Majlis, |
| author_facet | Rhonira Latif, Muhammad Fahmi Jaafar, Mohd Faizal Aziz, Burhanuddin Yeop Majlis, |
| author_sort | Rhonira Latif, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | Porous nanocrystalline silicon (pnc-Si) membrane is mainly studied as a blood filtration membrane, mimicking the
glomerulus filtration membrane of a human kidney. However, the pnc-Si material itself is not hemocompatible and
enormous membrane area to thickness ratio makes the membrane to be easily fractured. Silicon surface modification
via titanium-oxide (Ti-O) thin film layer deposition has been proven to be hemocompatible and the presence of Ti-O
layer has been numerically studied to give higher membrane flexural strength. In this work, square pnc-Si membranes of
2 mm × 2 mm × 20 nm size have been fabricated with and without Ti-O layer. Point loading-unloading nanoindentation
method has been performed and the membranes’ displacement behaviour subjected to point loads is studied. The pnc-Si
membranes with Ti-O layer were found to attain higher fracture strength, membrane bending stiffness and average hardness
with the increase of ~20, ~11 and ~24%, respectively, compared to bare pnc-Si membranes. The mechanical strength
of a free-standing pnc-Si membrane is improved by depositing a Ti-O thin film layer on the membrane structure. |
| first_indexed | 2025-11-15T00:26:53Z |
| format | Article |
| id | oai:generic.eprints.org:16173 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:26:53Z |
| publishDate | 2020 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:161732021-02-13T13:32:13Z http://journalarticle.ukm.my/16173/ Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating Rhonira Latif, Muhammad Fahmi Jaafar, Mohd Faizal Aziz, Burhanuddin Yeop Majlis, Porous nanocrystalline silicon (pnc-Si) membrane is mainly studied as a blood filtration membrane, mimicking the glomerulus filtration membrane of a human kidney. However, the pnc-Si material itself is not hemocompatible and enormous membrane area to thickness ratio makes the membrane to be easily fractured. Silicon surface modification via titanium-oxide (Ti-O) thin film layer deposition has been proven to be hemocompatible and the presence of Ti-O layer has been numerically studied to give higher membrane flexural strength. In this work, square pnc-Si membranes of 2 mm × 2 mm × 20 nm size have been fabricated with and without Ti-O layer. Point loading-unloading nanoindentation method has been performed and the membranes’ displacement behaviour subjected to point loads is studied. The pnc-Si membranes with Ti-O layer were found to attain higher fracture strength, membrane bending stiffness and average hardness with the increase of ~20, ~11 and ~24%, respectively, compared to bare pnc-Si membranes. The mechanical strength of a free-standing pnc-Si membrane is improved by depositing a Ti-O thin film layer on the membrane structure. Penerbit Universiti Kebangsaan Malaysia 2020-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/16173/1/20.pdf Rhonira Latif, and Muhammad Fahmi Jaafar, and Mohd Faizal Aziz, and Burhanuddin Yeop Majlis, (2020) Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating. Sains Malaysiana, 49 (12). pp. 3081-3087. ISSN 0126-6039 https://www.ukm.my/jsm/malay_journals/jilid49bil12_2020/KandunganJilid49Bil12_2020.html |
| spellingShingle | Rhonira Latif, Muhammad Fahmi Jaafar, Mohd Faizal Aziz, Burhanuddin Yeop Majlis, Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating |
| title | Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating |
| title_full | Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating |
| title_fullStr | Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating |
| title_full_unstemmed | Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating |
| title_short | Mechanical strength enhancement of porous nanocrystalline-silicon (pnc-Si) membrane via titanium-oxide (Ti-O) coating |
| title_sort | mechanical strength enhancement of porous nanocrystalline-silicon (pnc-si) membrane via titanium-oxide (ti-o) coating |
| url | http://journalarticle.ukm.my/16173/ http://journalarticle.ukm.my/16173/ http://journalarticle.ukm.my/16173/1/20.pdf |