Tribological Performance Analysis of Grey Cast-Iron against 52100 Steel Ball Bearing with Poly-alpha olefin Lubricant with Nano Additives under Reciprocating Motion / (Record no. 608264)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 02641nam a22001577a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 621 |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Nasir, Muhammad Anas |
| 245 ## - TITLE STATEMENT | |
| Title | Tribological Performance Analysis of Grey Cast-Iron against 52100 Steel Ball Bearing with Poly-alpha olefin Lubricant with Nano Additives under Reciprocating Motion / |
| Statement of responsibility, etc. | Muhammad Anas Nasir |
| 264 ## - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Place of production, publication, distribution, manufacture | Islamabad : |
| Name of producer, publisher, distributor, manufacturer | SMME- NUST; |
| Date of production, publication, distribution, manufacture, or copyright notice | 2023. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 70p. |
| Other physical details | Soft Copy |
| Dimensions | 30cm |
| 500 ## - GENERAL NOTE | |
| General note | This study is based on nano-particle based lubricants and their role in enhancement of<br/>tribological performance of base oil. CuO, ZnO and MoS2 nanoparticles are added to<br/>PAO-10 in 1wt% concentration along with 2wt.% oleic acid as a dispersant, these three<br/>mixtures are then set up for testing with a tribo-pair of ASTM-52100 steel ball and SAEJ431 (G-3000) gray cast iron. The tests are carried out on a computer controlled<br/>reciprocating tribometer and all the lubricants are subjected to 10N, 20N and 30N loading<br/>conditions. Test duration is 7200 seconds, at 50 rpm and ambient temperature. Under<br/>these conditions and a sliding point contact the test rig is designed to test lubricant<br/>performance under boundary lubrication regime. To study the wear scar, a digital optical<br/>microscope was used and dimensions for each wear scar were recorded along with the<br/>surface roughness before and after the testing.<br/>The reciprocating tribometer tests were also conducted on SAE-40 and SAE-0W20 fully<br/>formulated oils to compare the results with nano-particle based lubricants. The results<br/>from the tribometer tests suggest that ZnO nanoparticles showed positive results by<br/>slightly improving CoF values and showed a significant reduction in wear volume. CuO<br/>nanoparticles showed improvement in CoF values for lower loading conditions but could<br/>not improve performance for higher loading conditions. The MoS2 nanoparticles were<br/>observed to be most effective in reducing the CoF and wear scar volume when added to<br/>PAO-10. The lowest CoF value was observed with PAO+MoS2 at 20N load, which is a<br/>93% improvement as compared to PAO-10. The lowest value for wear scar volume was<br/>observed for PAO+MoS2 at 10N load which was 92% improvement as compared with<br/>PAO-10 only.<br/>This study further discusses the mechanism that physically changes the sliding conditions<br/>and play part in reducing the CoF and wear due to presence of nanoparticles and tries to<br/>relate them with the results of this study. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | MS Mechanical Engineering |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Supervisor : Dr. Muhammad Usman Bhutta |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://10.250.8.41:8080/xmlui/handle/123456789/42316">http://10.250.8.41:8080/xmlui/handle/123456789/42316</a> |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Koha item type | Thesis |
| Withdrawn status | Permanent Location | Current Location | Shelving location | Date acquired | Full call number | Barcode | Koha item type |
|---|---|---|---|---|---|---|---|
| School of Mechanical & Manufacturing Engineering (SMME) | School of Mechanical & Manufacturing Engineering (SMME) | E-Books | 02/26/2024 | 621 | SMME-TH-995 | Thesis |