Abrasive Resistance of Epoxy-Based Composites with Fillers Based on Tool Sharpening Sludge

2021 ◽  
Vol 50 (3) ◽  
pp. 269-273
Author(s):  
A. M. Mikhal’chenkov ◽  
I. V. Kozarez ◽  
S. A. Fes’kov ◽  
I. N. Kravchenko ◽  
Yu. A. Kuznetsov ◽  
...  
Keyword(s):  
Abrasive Resistance

scholarly journals Graphene Oxide/Reduced Graphene Oxide Enhanced Noniridescent Structural Colors Based on Silica Photonic Spray Paints with Improved Mechanical Robustness

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 949
Author(s):  
Jiali Yu ◽  
Cheng-Hao Lee ◽  
Chi-Wai Kan
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Butyl Acrylate ◽  
Light Spectrum ◽  
Time Saving ◽  
Abrasive Resistance ◽  
Practical Applications ◽  
Structural Colors ◽  
Color Saturation ◽  
Reduced Graphene

In contrast to traditional pigment colors, structural colors have developed a great potential in practical applications, thanks to their unique nonfading and color tunable properties; especially amorphous photonic structures with noniridescent structural colors have attracted considerable attention and their applications have expanded to more fields. Herein, graphene oxide (GO) and reduced graphene oxide (RGO) enhanced noniridescent structural colors with excellent mechanical robustness were established by a time-saving approach named spray coating, which allows for rapid fabrication of angular independent structural colors by spraying different photonic spray paints (PSPs) to ensure color multiplicity that was adjusted by the silica nanoparticles (SiO2 NPs) sizes onto the substrates. The incorporation of poly(methyl methacrylate-butyl acrylate) (PMB) improved the adhesion existing among SiO2 inter-nanoparticles and between SiO2 NPs and the substrates, taking advantages of the low glass transition temperature (Tg) of butyl acrylate derivative polymer and made PMB embedded PSPs coated patterns being imparted with good mechanical robustness and abrasive resistance. The peculiar light adsorption of GO and RGO across visible light spectrum facilitate higher color saturation. The improvement in color saturation of GO and RGO doped PSPs is expected to boost the promising applications in structurally colored paintings, inks and other color-related optical fields.

A study on abrasive resistance of Ni-based coatings with a WC hard phase

Wear ◽  
1996 ◽  
Vol 195 (1-2) ◽  
pp. 47-52 ◽  
Author(s):  
Hui Wang ◽  
Weiming Xia ◽  
Yuansheng Jin
Keyword(s):  
Hard Phase ◽  
Abrasive Resistance

Evaluation of Deep Criogenic Treatment at Microabrasive Wear of Aisi D2 Steel

2015 ◽  
Vol 1120-1121 ◽  
pp. 1257-1263
Author(s):  
Cosme Roberto Moreira Silva ◽  
Tiago F.O. Melo ◽  
José A. Araújo ◽  
J.L.A. Ferreira ◽  
S.J. Gobbi
Keyword(s):  
Wear Resistance ◽  
Treatment Cycle ◽  
Cryogenic Treatment ◽  
Deep Cryogenic Treatment ◽  
Abrasive Resistance ◽  
Austenitization Temperature ◽  
Aisi D2 Steel ◽  
X Ray ◽  
Aisi D2 ◽  
D2 Steel

Wear resistance of tool steels can be increased with deep cryogenic treatment (DCT) application. Mechanisms related to DCT are still not completely understood. Microabrasive wear resistance of cryogenically treated samples of AISI D2 steel was evaluated in terms of austenitization temperature at heat treatment cycle and quenching steps related to DCT. X-ray difractometry, scanning and optical microscopy and quantitative evaluation of carbides with image analysis were carried out aiming material characterization. For samples subjected to higher austenitization temperatures, the DCT treatment does not increase abrasive wear resistance. For samples treated at lower austenitization temperature, the DCT treatment results on 44% increase at abrasive resistance. This effect is correlated to the increase of the amount of fine carbides distributed at samples matrices cryogenically treated.

Impact of Different Fiber Reinforcement on Flexural Strength, Fracture Toughness and Abrasive Resistance of Provisional Restorative Resin

2021 ◽  
Author(s):  
Dr. Pratik Bhatnagar
Keyword(s):  
Fracture Toughness ◽  
Carbon Fiber ◽  
Flexural Strength ◽  
Clinical Performance ◽  
Testing Machine ◽  
Surface Hardness ◽  
Abrasive Resistance ◽  
Significance Level ◽  
Post Hoc ◽  
The Impact

Aim: To assess and compare the impact of reinforcement of PMMA with glass fibre, polyethylene fibre and carbon fibres on flexural strength, fracture toughness and abrasive resistance. Background: In view of inadequate mechanical and physical characteristics of PMMA which include low impact strength and low surface hardness and resulting lowered clinical performance of the prosthesis, the study was designed to investigate the impact of reinforcement of PMMA with glass, polyethylene and carbon fibers on flexural strength, fracture toughness and abrasive resistance. Methods and Findings: Rectangular specimens (n=120; 30 each from 4 groups; 65 × 10 × 3.3 mm3) were fabricated and loaded on Universal Testing Machine until fracture for flexural strength and fracture toughness and on Taber Abrasive Tester for abrasive resistance. Data were analyzed using one–way ANOVA followed by Post Hoc test - Bonferroni multiple comparison analysis, using significance level of 0.05. Significant increase in fracture toughness was observed in specimens reinforced with polyethylene and carbon fiber, albeit the values of flexural strength were increased insignificantly. Specimens reinforced with glass and carbon fiber had significantly low values of abrasive resistance. Conclusion: Findings indicate that reinforcement of PMMA by non-specific fibers like glass, polyethylene and carbon resulted in significant increase in fracture toughness and decrease in abrasive resistance.

scholarly journals Electroplating of non-fluorinated superhydrophobic Ni/WC/WS2 composite coatings with high abrasive resistance

2019 ◽  
Vol 487 ◽  
pp. 1329-1340 ◽  
Author(s):  
Jixue Zhou ◽  
Guochen Zhao ◽  
Jinshang Li ◽  
Jie Chen ◽  
Suqing Zhang ◽  
...  
Keyword(s):  
Composite Coatings ◽  
Abrasive Resistance

Interface Reaction between Nd2O3 and Alumina Single Crystal

2015 ◽  
Vol 1104 ◽  
pp. 21-25
Author(s):  
Si Long Bi ◽  
Bo Lin Wu ◽  
Yang Wu
Keyword(s):  
Rare Earth ◽  
Wear Rate ◽  
Single Crystal ◽  
Grain Boundaries ◽  
Interface Reaction ◽  
High Alumina ◽  
Compact Structure ◽  
Abrasive Resistance ◽  
High Alumina Content ◽  
Wear And Tear

A kind of high alumina content ceramic stand wear and tear has been designed. The interface chemical reaction between single crystal alumina (in order to eliminate the influence of grain boundaries) and Nd2O3 powder has been observed. Microstructure and wear rate of the ceramic were investigated by SEM and by a purposely designed experimental device for the measurement of wear rate. Perimental results showed that a rare earth aluminate formed on the interface and the wear rate of a sample has reduced by 34%. The newly formed compound and single crystal alumina formed a compact structure which could make the grain boundaries strengthened and also lead to a beneficial effect on the elimination of pore and the density of the ceramic, at the same time improve abrasive resistance.

Wear Characteristics of Polymer Tapes in ATM Tape-Scraper Tribosystem in Sand Dust Environment

2005 ◽  
Author(s):  
Tonghai Wu ◽  
Dongfeng Diao ◽  
Kazushi Yoshida
Keyword(s):  
Wear Rate ◽  
Wear Properties ◽  
Natural Sand ◽  
Abrasive Resistance ◽  
Simulated Environment ◽  
Clean Environment ◽  
Sand Storm ◽  
Clean Air ◽  
The Mean ◽  
Sand Dust

The tape-scraper tribosystem of ATM (Auto Teller Machine) was used to study the wear properties of polymer tapes of PEN (polyethylene-2, 6-naphthalenedicarboxylate) and PI (polyimide) sliding against polymer scraper of POM (polyoxymethylene) in the clean air environment and in the simulated environment of sand dust with the natural sand from the desert. As main results, the mean wear rate of the PEN tape in the sand storm environment was about 500 times of that in the clean environment and the mean wear rate of the PI tape in the sand storm environment was about 1700 times of that in the clean environment. The PI tape exhibited higher abrasive resistance than the PEN tape. The bill substrate increased the abrasive resistance of polymer tapes. The micro wear mechanism examination showed the plastic flow and the broken of fibers for PEN tape and block fracture due to brittle nature for PI tape.

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