Abrasive polishing load effect on surface roughness and material removal rate of Al2O3, ZTA and SiC

Strey, Nathan Fantecelle; Scandian, Chérlio

doi:10.1016/j.wear.2021.203787

Cited by 7 publications

(5 citation statements)

References 27 publications

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“…Furthermore, the erosion resistance at ambient and high temperatures of oil and gas choke valves was evaluated, and thermal-treated austenitic stainless steel erosion behaviour was explored. Sliding wear was also the subject of research; themes regarding the sliding of polymeric pairs [292]], water-lubricated ceramics [293][294][295], high-chromium cast iron [296] and cobalt alloys [144,297,298] were studied. Besides that, the group has a synergetic partnership with prominent Brazilian tribology groups, such as LTM/UFU and LFS/USP, as well as international groups, such as the tribology group from the Institut Clément Ader, IMT Mines Albi-Carmaux.…”

Section: Brazilian Tribology: Status Quomentioning

confidence: 99%

Brazilian Tribology: origin, status quo and future perspectives

de Mello,

Costa

2023

Surf. Topogr.: Metrol. Prop.

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This first regional issue published in STMP highlights the potential and importance of the research carried out in Latin America regarding surface engineering and tribology. In order to celebrate this important initiative, a complete historical account of Brazilian tribology is presented for the first time. It initiates with the first steps of Brazilian tribology in the 1980s, followed by the evolution and expansion of tribology research both in academic centres and industry. Focus is given to two outstanding achievements of Brazilian tribology: the fully flexible engines that run at any proportion of ethanol and gasoline and a fully innovative, completely oil-less family of hermetic compressors. The status-quo of the current research groups on tribology is described. Finally, the future trends envisaged by the Brazilian tribology community are presented.

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Section: Brazilian Tribology: Status Quomentioning

confidence: 99%

Brazilian Tribology: origin, status quo and future perspectives

de Mello,

Costa

2023

Surf. Topogr.: Metrol. Prop.

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“…The basal slip of MAX phase ceramics occurs preferentially along the h11 20i direction at room temperature and other slip systems are less active. 7), 31) The damage introduced by cutting is most likely cracks along the h11 20i direction within the single grain. These cracks may affect the mechanical strength of machined Ti 2 AlC ceramics.…”

Section: Bending Strength and Behaviormentioning

confidence: 99%

Influence of cutting damage on the bending strength of Ti<sub>2</sub>AlC MAX phase machinable ceramics

Yamaguchi

Osada

Kuo

et al. 2023

J. Ceram. Soc. Japan

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Ti 2 AlC MAX phase ceramics are excellent candidates for high-temperature heat resistant materials. In addition, they are machinable using cemented carbide tools. However, heavy machining induces many surface cracks, reducing the mechanical strength and reliability of ceramic parts. Herein, we investigated the influence of the machining process on the bending strength and microstructure of Ti 2 AlC ceramics. Nearly fully dense Ti 2 AlC ceramics with elongated grains were machined using a carbide end mill in brittle mode, producing numerous cracks; however, the roughness of the ceramic was similar to that of tool steel cut in ductile mode. Despite its rough surface, the bending strength of the machined Ti 2 AlC was only slightly lower than that of polished Ti 2 AlC. The cracks in the machined Ti 2 AlC ceramics were induced with a kinking structure; however, they stopped at a length equivalent to one grain. The minimum strength of the machined Ti 2 AlC ceramics with a fracture toughness of 6.9 MPa•m 1/2 was estimated by assuming a machining through-crack shape that was as deep as the maximum grain size. Cutting damage was limited to a single grain; thus, the bending strength of the machined Ti 2 AlC was not significantly reduced.

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“…Alumina ceramics can be polished using various methods, including mechanical polishing, chemical polishing and electrolytic polishing. Among these techniques, mechanical polishing using abrasive slurries is the most commonly used method [13]. The use of diamond abrasives has proven to be particularly effective in achieving a high degree of surface finish.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing of Large and Polished Ceramic Pistons by Cold Isostatic Pressing

Gerlei,

Kránicz,

Korim

et al. 2023

Hung. J. Ind. Chem.

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This paper discusses the challenges involved in producing high-quality alumina ceramics, particularly when it comes to achieving a suitable degree of surface roughness and high accuracy. Alumina ceramics are widely used in various applications due to their exceptional properties, including high strength, wear resistance and chemical stability. The alumina ceramic pistons with the desired properties and performance were produced from commercially available raw materials. To improve the densification and mechanical properties of the sintered ceramics, an organic binder was used. The use of a diamond abrasive slurry for polishing was also studied, which has proven to be particularly effective in achieving a high degree of surface finish. The study aims to produce alumina-based pistons with a low level of surface roughness as well as discusses the techniques and methods used to achieve this goal. The results of this paper include the porosity, mechanical properties and microstructure of the alumina ceramics produced in addition to the effectiveness of the techniques and methods applied.

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Abrasive polishing load effect on surface roughness and material removal rate of Al2O3, ZTA and SiC

Cited by 7 publications

References 27 publications

Brazilian Tribology: origin, status quo and future perspectives

Brazilian Tribology: origin, status quo and future perspectives

Influence of cutting damage on the bending strength of Ti<sub>2</sub>AlC MAX phase machinable ceramics

Manufacturing of Large and Polished Ceramic Pistons by Cold Isostatic Pressing

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