Preparation and infrared/millimeter wave attenuation properties of magnetic expanded graphite by explosive combustion
A composite based on magnetic iron particles and expanded graphite was prepared by an explosive combustion and blending method. It was then introduced into a smoke canister, and colloidal silicone rubber (RTV-615) was used as an infrared and millimeter wave absorber. The infrared shielding effective...
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| Veröffentlicht in: | Materials express 2016-02, Vol.6 (1), p.53-60 |
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| creator | Hung, Wei-Che Cheng, Ken-Fa Lan, Chin-Hsiang Chang, Yin-Chiung Wu, Kuo-Hui |
| description | A composite based on magnetic iron particles and expanded graphite was prepared by an explosive combustion and blending method. It was then introduced into a smoke canister, and colloidal silicone rubber (RTV-615) was used as an infrared and millimeter wave absorber. The infrared shielding
effectiveness was investigated by measuring the thermal extinction using the smoke canister for dynamic testing with a thermal imager in the 8-12 μm range. The millimeter wave absorbing properties were investigated by measuring the transmission loss in the 32-38 GHz microwave
frequency range with a network analyzer using the free space method. The effects of structure, media material type (carbonyl iron powder and Fe3O4 and weight ratio on the infrared/millimeter wave attenuation properties of magnetic expanded graphite were also studied.
The results showed that the magnetic expanded graphite had excellent infrared (8-12 μm) and millimeter wave (35 GHz) interference abilities and could be used as a new material for obscuring infrared and millimeter waves. For magnetic expanded graphite with a concentration of
2 mg/cm3, the thermal extinction reached 31 °C, and at a weight ratio (expanded graphite:magnetic iron particles) of 2:1 (3 mg/cm3 and a thickness of 1.5 mm, the minimum transmission loss value was -10.8 dB in the 32-38 GHz range. |
| doi_str_mv | 10.1166/mex.2016.1282 |
| format | Article |
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effectiveness was investigated by measuring the thermal extinction using the smoke canister for dynamic testing with a thermal imager in the 8-12 μm range. The millimeter wave absorbing properties were investigated by measuring the transmission loss in the 32-38 GHz microwave
frequency range with a network analyzer using the free space method. The effects of structure, media material type (carbonyl iron powder and Fe3O4 and weight ratio on the infrared/millimeter wave attenuation properties of magnetic expanded graphite were also studied.
The results showed that the magnetic expanded graphite had excellent infrared (8-12 μm) and millimeter wave (35 GHz) interference abilities and could be used as a new material for obscuring infrared and millimeter waves. For magnetic expanded graphite with a concentration of
2 mg/cm3, the thermal extinction reached 31 °C, and at a weight ratio (expanded graphite:magnetic iron particles) of 2:1 (3 mg/cm3 and a thickness of 1.5 mm, the minimum transmission loss value was -10.8 dB in the 32-38 GHz range.</description><identifier>ISSN: 2158-5849</identifier><identifier>EISSN: 2158-5857</identifier><identifier>DOI: 10.1166/mex.2016.1282</identifier><language>eng</language><publisher>American Scientific Publishers</publisher><subject>Expanded Graphite ; Infrared ; Magnetic Expanded Graphite ; Millimeter Wave</subject><ispartof>Materials express, 2016-02, Vol.6 (1), p.53-60</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-d6476c4109eca83adb7735ff4a1cfec8a8d5df978cc692e84419a7f78510395e3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>288,314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Hung, Wei-Che</creatorcontrib><creatorcontrib>Cheng, Ken-Fa</creatorcontrib><creatorcontrib>Lan, Chin-Hsiang</creatorcontrib><creatorcontrib>Chang, Yin-Chiung</creatorcontrib><creatorcontrib>Wu, Kuo-Hui</creatorcontrib><title>Preparation and infrared/millimeter wave attenuation properties of magnetic expanded graphite by explosive combustion</title><title>Materials express</title><addtitle>Mat Express</addtitle><description>A composite based on magnetic iron particles and expanded graphite was prepared by an explosive combustion and blending method. It was then introduced into a smoke canister, and colloidal silicone rubber (RTV-615) was used as an infrared and millimeter wave absorber. The infrared shielding
effectiveness was investigated by measuring the thermal extinction using the smoke canister for dynamic testing with a thermal imager in the 8-12 μm range. The millimeter wave absorbing properties were investigated by measuring the transmission loss in the 32-38 GHz microwave
frequency range with a network analyzer using the free space method. The effects of structure, media material type (carbonyl iron powder and Fe3O4 and weight ratio on the infrared/millimeter wave attenuation properties of magnetic expanded graphite were also studied.
The results showed that the magnetic expanded graphite had excellent infrared (8-12 μm) and millimeter wave (35 GHz) interference abilities and could be used as a new material for obscuring infrared and millimeter waves. For magnetic expanded graphite with a concentration of
2 mg/cm3, the thermal extinction reached 31 °C, and at a weight ratio (expanded graphite:magnetic iron particles) of 2:1 (3 mg/cm3 and a thickness of 1.5 mm, the minimum transmission loss value was -10.8 dB in the 32-38 GHz range.</description><subject>Expanded Graphite</subject><subject>Infrared</subject><subject>Magnetic Expanded Graphite</subject><subject>Millimeter Wave</subject><issn>2158-5849</issn><issn>2158-5857</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LxDAQhosoKLpH7_kDXZN-Jb0IsvgFC3rQc5hNJ2uWNi1J6tevN6HizblkGN55JjxZdsnomrGmuRrwc11Q1qxZIYqj7KxgtchrUfPjv75qT7OV9wcaq64EE9VZNj87nMBBMKMlYDtirHbgsLsaTN-bAQM68gHvSCAEtPMSnNw4oQsGPRk1GWBvMRhF8HOKCOzI3sH0ZgKS3Vca9qM3kaDGYTf7BLjITjT0Hle_73n2enf7snnIt0_3j5ubba7KhoW8ayreqIrRFhWIErod52WtdQVMaVQCRFd3uuVCqaYtUFQVa4FrLmpGy7bG8jzLF65yo_cOtZycGcB9SUZl0iajNpm0yaQt5rdL3tg92gDyMM7Oxh9KoyT4SSaTSaR8byyLiwWjgsblOJYdapj7IAM4uf-Wnkfc9T-4xBpwuUyX-muYBBdSw8sfFqWRUw</recordid><startdate>20160201</startdate><enddate>20160201</enddate><creator>Hung, Wei-Che</creator><creator>Cheng, Ken-Fa</creator><creator>Lan, Chin-Hsiang</creator><creator>Chang, Yin-Chiung</creator><creator>Wu, Kuo-Hui</creator><general>American Scientific Publishers</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20160201</creationdate><title>Preparation and infrared/millimeter wave attenuation properties of magnetic expanded graphite by explosive combustion</title><author>Hung, Wei-Che ; Cheng, Ken-Fa ; Lan, Chin-Hsiang ; Chang, Yin-Chiung ; Wu, Kuo-Hui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-d6476c4109eca83adb7735ff4a1cfec8a8d5df978cc692e84419a7f78510395e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Expanded Graphite</topic><topic>Infrared</topic><topic>Magnetic Expanded Graphite</topic><topic>Millimeter Wave</topic><toplevel>online_resources</toplevel><creatorcontrib>Hung, Wei-Che</creatorcontrib><creatorcontrib>Cheng, Ken-Fa</creatorcontrib><creatorcontrib>Lan, Chin-Hsiang</creatorcontrib><creatorcontrib>Chang, Yin-Chiung</creatorcontrib><creatorcontrib>Wu, Kuo-Hui</creatorcontrib><collection>CrossRef</collection><jtitle>Materials express</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hung, Wei-Che</au><au>Cheng, Ken-Fa</au><au>Lan, Chin-Hsiang</au><au>Chang, Yin-Chiung</au><au>Wu, Kuo-Hui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and infrared/millimeter wave attenuation properties of magnetic expanded graphite by explosive combustion</atitle><jtitle>Materials express</jtitle><stitle>Mat Express</stitle><date>2016-02-01</date><risdate>2016</risdate><volume>6</volume><issue>1</issue><spage>53</spage><epage>60</epage><pages>53-60</pages><issn>2158-5849</issn><eissn>2158-5857</eissn><abstract>A composite based on magnetic iron particles and expanded graphite was prepared by an explosive combustion and blending method. It was then introduced into a smoke canister, and colloidal silicone rubber (RTV-615) was used as an infrared and millimeter wave absorber. The infrared shielding
effectiveness was investigated by measuring the thermal extinction using the smoke canister for dynamic testing with a thermal imager in the 8-12 μm range. The millimeter wave absorbing properties were investigated by measuring the transmission loss in the 32-38 GHz microwave
frequency range with a network analyzer using the free space method. The effects of structure, media material type (carbonyl iron powder and Fe3O4 and weight ratio on the infrared/millimeter wave attenuation properties of magnetic expanded graphite were also studied.
The results showed that the magnetic expanded graphite had excellent infrared (8-12 μm) and millimeter wave (35 GHz) interference abilities and could be used as a new material for obscuring infrared and millimeter waves. For magnetic expanded graphite with a concentration of
2 mg/cm3, the thermal extinction reached 31 °C, and at a weight ratio (expanded graphite:magnetic iron particles) of 2:1 (3 mg/cm3 and a thickness of 1.5 mm, the minimum transmission loss value was -10.8 dB in the 32-38 GHz range.</abstract><pub>American Scientific Publishers</pub><doi>10.1166/mex.2016.1282</doi><tpages>8</tpages></addata></record> |
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| source | IngentaConnect Free/Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Expanded Graphite Infrared Magnetic Expanded Graphite Millimeter Wave |
| title | Preparation and infrared/millimeter wave attenuation properties of magnetic expanded graphite by explosive combustion |
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