Thermo-Optical switching of Paraffin wax hosting graphite / (Record no. 57273)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03252cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223031532.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 160730s2016 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.24.12.M.Sc.2016.As.T |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Asmaa Said Abdelfattah |
| 245 10 - TITLE STATEMENT | |
| Title | Thermo-Optical switching of Paraffin wax hosting graphite / |
| Statement of responsibility, etc. | Asmaa Said Abdelfattah ; Supervised Gamal Abdel Fattah , Abeer Mohamed Salah Eldin |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | شمع البرافين المحتوى علي الجرافيت كمفتاح حرارى ضوئي |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Asmaa Said Abdelfattah , |
| Date of publication, distribution, etc. | 2016 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 153 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - National Institute of Laser Enhanced Sciences - Department of Laser Science and Interaction |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Thermo-optical switching (TOS) transmission of paraffin wax hosting a different concentration of powder graphite or graphene was examined. Two series of graphite/paraffin wax and graphene/paraffin wax were studied. In the composite, paraffin wax was used as a Phase Change Material (PCM) while graphite or graphene used to enhance thermal properties of paraffin wax. Due to a large particle size of graphite, dispersing toluene into paraffin wax graphite composites was done. Optical microscopy was used in characterizing the microstructure of the composite. It is found that graphene/paraffin wax and graphite/paraffin wax dispersed in toluene have a homogenous distribution while samples without toluene have agglomeration and precipitation at the bottom of the tube. TOS transmission versus time and temperature are measured by using test tube with inner diameter 11 mm for bulk composites and capillary tube with inner diameter 1 mm for spot composites. TOS properties of spots composites were better than that of bulk composites because the small spot weight of the sample, need a small quantity of heat to melt, that leads to fast switching. Differential Scanning Calorimetric (DSC) was measured for the prepared samples. The melting temperature, latent heat of fusion, heat gained and heat loss of paraffin wax-graphite or graphene composites were determined. The melting temperature of Paraffin wax hosting graphite without toluene is close to those of pure paraffin wax. The melting temperature, latent heat, heat gained and heat loss of two phase transitions measured from DSC for paraffin wax-graphite composite dispersed in toluene decrease as graphite to paraffin wax ratios increase. DSC for paraffin wax-graphene composite shows that the temperature is affected gradually as the graphene content increase, the sample of high graphene concentration (0.007) shows strongly decrease the melting temperature, latent heat, and heat gained and heat lost |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Hosting graphite |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Paraffin wax |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Thermo-Optical switching |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Abeer Mohamed Salah Eldin , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Gamal Abdelfattah , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Enas |
| Reviser | Cataloger |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.24.12.M.Sc.2016.As.T | 01010110069492000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.24.12.M.Sc.2016.As.T | 01020110069492000 | 22.09.2023 | CD - Rom | 69492.CD |