نتایج جستجو برای: crack free coating

تعداد نتایج: 572189  

2003
Manuel Löhr

Wear tests were carried out on different DLC coatings under lubricated and dry slip-rolling friction in a Twin-Disc Testing rig. The analysis of Acoustic Emission (AE) provided an easy and comfortable tool for monitoring the wear life of DLC coatings. A DLC coating in-service was indicated by the appearance of no or just single AE events due to single damages (crack, small spallings, etc.) to t...

2017
Ningning Hu Matiullah Khan Yongzhe Wang Xuemei Song Yi Zeng

In this paper, the effect of microstructure on the thermal conductivity of plasma-sprayed Y2O3 stabilized ZrO2 (YSZ) thermal barrier coatings (TBCs) is investigated. Nine freestanding samples deposited on aluminum-base superalloy are studied. Cross-section morphology such as pores, cracks, m-phase content, grain boundary density of the coated samples are examined by scanning electron microscopy...

2018
Yanbin Li Yongming Sun Allen Pei Kaifeng Chen Arturas Vailionis Yuzhang Li Guangyuan Zheng Jie Sun Yi Cui

Lithium metal is the ultimate anode choice for high energy density rechargeable lithium batteries. However, it suffers from inferior electrochemical performance and safety issues due to its high reactivity and the growth of lithium dendrites. It has long been desired to develop a materials coating on Li metal, which is pinhole-free, mechanically robust without fracture during Li metal depositio...

N. Parvini Ahmadi S. Yazdani, T. Saeid

The effect of an electroless Ni-Cu-P coating on the fatigue behavior of quenched and tempered CK45 steel has been investigated. The fatigue tests under rotating bending conditions have been conducted in three different conditions of uncoated, as-deposited and shot peened prior to the coating deposition. The results indicate that plating of the base steel leads to a fatigue life reduction. The d...

S. Mohammadi S.R. Sabbagh-Yazdia, S.Sh. Ghorashi

A new approach for analyzing cracked problems in 2D orthotropic materials using the well-known element free Galerkin method and orthotropic enrichment functions is proposed. The element free Galerkin method is a meshfree method which enables discontinuous problems to be modeled efficiently. In this study, element free Galerkin is extrinsically enriched by the recently developed crack-tip orthot...

Journal: :Epj Web of Conferences 2021

The paper proposes methods to predict the reliability of a multilayered coating based on model with independently (sequentially) degrading layers. For mathematical description process crack penetration into depth layered solid body from free surface certain roughness, propagation tip layer adjacent boundary is considered. This stochastic described through specification all multipoint probabilit...

Journal: :International Journal On Interactive Design And Manufacturing (ijidem) 2022

The analysis of vibration over coated sample is required to investigate the and noise damping behaviors coatings. In this research work, conventional gun spray method used coat oxime modified titanium (IV) isopropoxide on steel find out behaviour coating. most modal measure bare titania samples. During test it was observed that a thin coating has improved when compare with sample. surface morph...

Journal: :Physical chemistry chemical physics : PCCP 2013
Hongmin Ma Picheng Gao Dawei Fan Guobao Li Dan Wu Bin Du Qin Wei

Arrayed microchannels with dimensions of tens to hundreds of micrometres show great potential for application in microfluidics, microreactor devices and other areas. In this work, we report the formation of ordered arrays of cracks on solution-cast colloidal films, and the preparation of radially aligned microchannels. The polymer film coating enables the colloidal film to be detached from the ...

Journal: :international journal of nano dimension 0
m. tanhaei department of chemistry, faculty of science, imam khomeini, international university, ghazvin, iran. v. mohammady department of chemistry, faculty of science, imam khomeini, international university, ghazvin, iran.

sol–gel chemistry is an efficient tool to control the morphology and reactivity of solids. drying is the crucial step due to the capillary forces exerted during the classic ambient drying process, which induces the collapse of the wet gel porosity. the use of n, n-dimethylformamide (dmf), a newly found dcca were found to be effective in the sol–gel synthesis of crack-free silica gel monolith fr...

2017
Ke Wang Hailin Wang Guangzhi Zhu Xiao Zhu

A Cr13Ni5Si2-based composite coating was successfully deposited on copper by pulse laser induction hybrid cladding (PLIC), and its high-temperature wear behavior was investigated. Temperature evolutions associated with crack behaviors in PLIC were analyzed and compared with pulse laser cladding (PLC) using the finite element method. The microstructure and present phases were analyzed using scan...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید