MARC details
| 000 -LEADER |
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| fixed length control field |
03440ntm a2200337 i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MY-KuUP |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251125110925.0 |
| 006 - FIXED-LENGTH DATA ELEMENTS--ADDITIONAL MATERIAL CHARACTERISTICS |
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| fixed length control field |
t||||fr|||| 000 0 |
| 007 - PHYSICAL DESCRIPTION FIXED FIELD--GENERAL INFORMATION |
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| fixed length control field |
ta |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
240917t20242024my a|||fr|||| 000 0 eng d |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
THE0009961 (Local) |
| Qualifying information |
Hardback |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
UMPSA |
| Language of cataloging |
eng |
| Transcribing agency |
UMP |
| Description conventions |
rda |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
FIST .A45 2024 r Thesis |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Nur Amirah Athirah Binti Zaini, |
| Relator term |
author. |
| 245 10 - TITLE STATEMENT |
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| Title |
Synthesis and microwave shielding properties of carbon - coated cobalt ferrite / epoxy nanocomposite / |
| Statement of responsibility, etc. |
Nur Amirah Athirah Binti Zaini |
| 264 #1 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
|---|
| Place of production, publication, distribution, manufacture |
Kuantan, Pahang : |
| Name of producer, publisher, distributor, manufacturer |
UMPSA, |
| Date of production, publication, distribution, manufacture, or copyright notice |
2024 |
| 264 #4 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE |
|---|
| Date of production, publication, distribution, manufacture, or copyright notice |
© 2024 |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
xiii, 120 pages : |
| Other physical details |
illustration ; |
| Dimensions |
30 cm. + |
| Accompanying material |
1 CD-ROM |
| 336 ## - CONTENT TYPE |
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| Source |
rdacontent |
| Content type term |
text |
| 337 ## - MEDIA TYPE |
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| Source |
rdamedia |
| Media type term |
unmediated |
| 338 ## - CARRIER TYPE |
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| Source |
rdacarrier |
| Carrier type term |
volume |
| 347 ## - DIGITAL FILE CHARACTERISTICS |
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| Source |
rda |
| File type |
text file |
| Encoding format |
PDF |
| 500 ## - GENERAL NOTE |
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| General note |
Faculty of Industrial Sciences and Technology |
| 502 ## - DISSERTATION NOTE |
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| Dissertation note |
Thesis (Master of Science) -- Universiti Malaysia Pahang – 2024 |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE |
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| Bibliography, etc. note |
Include bibliographical reference |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
An increase in the electromagnetic wave pollution generated from wireless telecommunication devices as well as natural electromagnetic waves have called for the development of suitable shielding materials. The synergistic effect of composite materials had demonstrated favorable shielding performance against electromagnetic wave pollution. In this regard, carbon-coated CoFe2O4/epoxy composites were prepared by the facile hydrothermal method, in which epoxy was used as the matrix and the carboncoated CoFe2O4 as the filler with different composition of carbon coating ratio at 1:1 (Sample 1), 2:1 (Sample 2), 3:1 (Sample 3) and 4:1 (Sample 4). The structural, morphological, microstructural and chemical interaction of carbon-coated CoFe2O4 were characterized and studied by using specific techniques and instrument respectively. The crystallographic properties from the analysis confirmed the formation of CoFe2O4 with a crystallite size of ~13 nm. The amorphous carbon coating over the CoFe2O4 nanosphere was further validated by its morphological properties that showed the carbon coating was uniformly dispersed over the CoFe2O4 nanosphere particles. For the thickness of its morphology, a thin layer of carbon coating for sample 4 with ratio of 4:1 was found to be the thickest at ~3.8 nm. The electromagnetic parameters were evaluated by the vector network analyzer based on the measured S-parameter in the frequency range of 8.2 to 12.4 GHz, X-band region and is adequate for radar applications. Sample 4 was also found to achieve the highest total SE of ~ -17 dB at ~10 GHz with 2 mm. The presence of carbon enhanced the shielding properties. Sample 4 was further studied for its electromagnetic properties at different compositions of filler. The 20% filler showed the best magnitude at ~-36 dB at 10.1 GHz compared to the others. The shielding effectiveness of the sample could be tuned as high as possible by adding the conductive polymer as the property modifier. These studies conclude that the carbon-coated CoFe2O4/epoxy composites can serve as a good candidate for shielding from electromagnetic wave pollution at a certain point of carbon coating and filler composition. |
| 610 20 - SUBJECT ADDED ENTRY--CORPORATE NAME |
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| Corporate name or jurisdiction name as entry element |
Faculty of Industrial Sciences and Technology |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
Universities and colleges |
| General subdivision |
Dissertations |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
Theses |
| General subdivision |
Dissertations |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Library of Congress Classification |
| Koha item type |
Thesis |