The usability and preliminary effectiveness of ultrasonic nanocrystalline surface modification technique on surface properties of silicon carbide

Amanov, Auezhan; Pyun, Young Sik; Kim, Jun‐Hyong; Sasaki, Shinya

doi:10.1016/j.apsusc.2014.05.089

Cited by 31 publications

(12 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is obvious that the ball tested at a temperature of 25 °C exhibited a higher resistance to wear than the specimens tested at a temperature of 200 °C. A similar result was reported in [ 20 ]. The presence of SiC in a C/C composite increases the friction coefficient during braking, but the wear resistance can also be mitigated because of the abrasive character of SiC.…”

Section: Resultssupporting

confidence: 91%

Microstructural Analysis and Wear Performance of Carbon-Fiber-Reinforced SiC Composite for Brake Pads

Byeong-Choon

Cho

2017

Materials

View full text Add to dashboard Cite

Carbon-fiber-reinforced silicon carbide (C/C-SiC) composite is widely used as a friction material owing to its good performance, even though it is more expensive than metallic materials. The light C/C-SiC composite is an ideal candidate for weight reduction of frictional parts. In this study, the friction and wear behavior of C/C-SiC composite was assessed using a ball-on-disk friction tester under dry reciprocating sliding conditions at different temperatures of 25, 100, and 200 °C. The disk specimens were made of C/C-SiC composite, while the mating counterpart pins were made of bearing steel. The microstructure and wear track of the specimens were characterized using a scanning electron microscopy (SEM) and Raman spectroscopy. The microstructural analysis of the wear track revealed that the wear mechanism was abrasive. The friction coefficient and wear behavior of the specimens was dependent on the temperature, where the friction coefficients and wear rate increased with increasing temperature.

show abstract

Section: Resultssupporting

confidence: 91%

Microstructural Analysis and Wear Performance of Carbon-Fiber-Reinforced SiC Composite for Brake Pads

Byeong-Choon

Cho

2017

Materials

View full text Add to dashboard Cite

show abstract

“…2. It has been reported earlier in our previous studies that the UNSM technique was able to increase the hardness and Young's modulus of SiC at the top surface [15,16], which may be attributed to the reduction in large interconnected pores and modified top surface layer with a thickness of about 4 mm as shown in Fig. 3.…”

Section: Surface Properties Of the Untreated And Unsm-treated Specimensmentioning

confidence: 77%

“…Fig. 9 shows the wear volume loss of the corresponding counter surface balls that was quantified according to the expression below [15]:…”

Section: Friction and Wear Behaviormentioning

confidence: 99%

“…Moreover, it is worth mentioning here that the UNSM technique has a significant effect on the mechanical, structural, and tribological properties of SiC sliding against bearing steel and alumina (Al 2 O 3 ) ceramic at various temperatures under dry and oillubricated conditions, respectively. [15,16]. However, in spite of excellent results, there is still a lack of knowledge about the effectiveness of UNSM technique on the tribological properties and wear mechanisms of SiC ceramic under water-lubricated conditions.…”

Section: Introductionmentioning

confidence: 95%

See 1 more Smart Citation

Wear mechanisms of silicon carbide subjected to ultrasonic nanocrystalline surface modification technique

Amanov

Kim

Pyun

et al. 2015

Wear

Self Cite

View full text Add to dashboard Cite

“…최근 이 기술을 여러 분야 와 부품에 적용한 연구들이 활발히 수행되고 있으며 피로강도, 표 면거칠기, 경도 등 기계적 물성치 향상을 보여주고 있다 [1][2][3][4][5][6][7][8] . 이러 한 향상들은 정적 힘, 웨이브가이드의 진동 거리 및 주파수 등의 실험 조건들에 따라 달라지므로 체계적인 연구를 위해 UNSM을 위한 장치 개발이 필요하다.…”

Section: 서 론unclassified

Development of 20-kHz Ultrasonic Equipment for UNSM

Shin¹,

Kim²,

Lim³

2015

Journal of the Korean Society of Manufacturing Technology Engin

View full text Add to dashboard Cite

ARTICLE INFO ABSTRACTArticle history:Ultrasonic nanocrystal surface modification (UNSM) is an example of a nanoscale-surface modification that has become noticeable because of its effects on the mechanical improvement of metallic materials. UNSM equipment needs to be both utilized and improved. The equipment is based on an ultrasonic waveguide whose role is to strike surfaces of metallic materials to achieve nanoscale deformation. In this paper, we introduce the development of one kind of UNSM equipment. Using piezoelectric elements, we repeatedly design and fabricate a 20-kHz ultrasonic waveguide. With respect to the composition of the equipment, the waveguide is automatically transferred by two axial stages automatically. In addition, a static force is constantly applied by pneumatic devices. We perform an experiment to verify the feasibility of the equipment.

show abstract

The usability and preliminary effectiveness of ultrasonic nanocrystalline surface modification technique on surface properties of silicon carbide

Cited by 31 publications

References 26 publications

Microstructural Analysis and Wear Performance of Carbon-Fiber-Reinforced SiC Composite for Brake Pads

Microstructural Analysis and Wear Performance of Carbon-Fiber-Reinforced SiC Composite for Brake Pads

Wear mechanisms of silicon carbide subjected to ultrasonic nanocrystalline surface modification technique

Development of 20-kHz Ultrasonic Equipment for UNSM

Contact Info

Product

Resources

About