Impact-abrasive wear resistance of high alumina ceramics and ZTA

Varga, M.; Grundtner, Reinhard; Maj, Matthias; Tatzgern, Fabio; Alessio, Karl-Otto

doi:10.1016/j.wear.2023.204700

Cited by 11 publications

(2 citation statements)

References 31 publications

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“…Additionally, it finds use as insulation material in electronics and high-temperature applications. The suitability of aluminium oxide, corundum, and other materials depends on factors such as their content, grain size, and porosity, all of which are decisive for their specific areas of application in diverse industrial scenarios involving abrasion, wear protection, and corrosion resistance [35,36].…”

Section: Used Particle Propertiesmentioning

confidence: 99%

Innovative Approaches to Wear Reduction in Horizontal Powder Screw Conveyors: A Design of Experiments-Guided Numerical Study

Motaln,

Lerher

2024

Applied Sciences

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Numerical simulations play a vital role in the modern engineering industry, especially when faced with interconnected challenges such as particle interactions and the structural integrity of conveyor systems. This article focuses on the handling of materials and emphasizes the importance of using parametric numerical analysis to improve efficiency, reduce wear, and enhance the structural integrity of horizontal screw conveyors. Through the utilization of the Design of Experiments, we systematically investigated critical parameters such as screw pitch, clearance, wear, rotational velocity, and additional structural factors. This examination was carried out within a well-defined parametric framework, utilizing a combination of software tools provided by the Ansys suite and Minitab. The findings demonstrate the effectiveness of the Design of Experiments analysis in achieving improved performance and provide valuable insights for engineers and researchers involved in the design of conveyor systems. Furthermore, this comprehensive approach clarifies how conveyor systems respond to changes in parameters and highlights the complex interaction between transported particles and the conveyor system. We present a detailed analysis that clarifies the complex relationships and dependencies among different parameters, providing engineers and researchers with valuable insights. By understanding the interactions of these factors, the methodology provides not only results but also a strategic framework for advancing conveyor system design and engineering practices.

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Section: Used Particle Propertiesmentioning

confidence: 99%

Innovative Approaches to Wear Reduction in Horizontal Powder Screw Conveyors: A Design of Experiments-Guided Numerical Study

Motaln,

Lerher

2024

Applied Sciences

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“…During machining, tool materials are exposed to very high stresses, temperatures and vibrations [12]. To withstand at those extreme condition's alumina ceramic of defined grade and charactesticks such as shape and particle size, is to be selected to attain the optimum properties in the final tool material and this specially processed selected grade can only meet the requirement of severe machining conditions [13,14]. While, high density and finer grain size are the major criteria for the successful performance of the Al2O3 ceramic material tool, it is also vital to carry the fabrication process using an effective sintering technique [15].…”

Section: Introductionmentioning

confidence: 99%

Machining performance of ceramic tool inserts during dry turning of hardened steel

Vandana,

Nagasree

2023

Sinergi

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For effective dry turning of hardened steels, ceramic tool materials have long been utilized as an alternative to conventional tool materials. Therefore, the purpose of the current work is to investigate whether ceramic materials like alumina (Al2O3) are suitable for use as tool materials during the dry (without coolant) turning of hardened steels. In addition, while cutting EN 24 hardened steels, the performance of an alumina ceramic tool insert was compared to a commercial tool insert in the current work. On EN 24 steel samples, turning operations were performed utilizing both alumina ceramic tool inserts and commercial carbide tool inserts at different machining parameters such as speed, feed, and depth of cut. The turning performance of both alumina and commercial tool inserts was evaluated at various machining conditions based on abrasive wear (weight loss) of the tool inserts and the surface roughness of EN 24 machined samples. At all machining parameters, it was found that the abrasive wear of ceramic tool inserts was lower than the abrasive wear of commercial tool inserts. It is observed that, the surface roughness of EN 24 machined samples when machined with ceramic tool inserts was a little higher when compared with the surface roughness values of EN 24 machined samples which are machined with the commercial tool insert. The results of the experiment showed that ceramic cutting tools had comparable cutting performance to commercial cutting tools.

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