Influence of agglomerated diamond abrasive wear on sapphire material removal behavior

Chen, Jiapeng; Zhu, Ning; Niu, Fengli; Peng, Yanan; Su, Jianxiu; Zhu, Yongwei

doi:10.1016/j.diamond.2020.107965

Cited by 35 publications

(10 citation statements)

References 24 publications

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“…Prior to nano-indentation and nano-scratching, all wafers should be lapped and polished to be ultra-smooth on both surfaces and damage-free. For high efficiency, a fixed abrasive pad [ 17 , 18 , 19 , 20 , 21 ] was adopted in lapping processing. Thereby, 50 wt.% of W14 diamond grits (grain size of 10–14 μm) were fixed into this lapping pad, and the slurry was the deionized water only mixed with 0.2% OP-10.…”

Section: Methodsmentioning

confidence: 99%

Effect of the Anisotropy Mechanical Properties on LN Crystals Fixed-Abrasive Lapping

et al. 2020

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The anisotropy of lithium niobate (LN) single crystals in mechanical properties affects its material removal uniformity during lapping. The nano-indentation hardness (HI) and elastic modulus(E) of Z-cut wafer and X-cut wafer were measured by a nano-indentation tester. The nano-scratching tests were adopted to evaluate its critical cutting depth (dc) of brittle ductile transition along crucial orientations of Z-cut and X-cut, respectively. A series of fixed-abrasive lapping tests were carried out to explore the effect of anisotropy on the lapping process. The results indicated that the HI of Z-cut was slightly higher than that of X-cut, while the E of Z-cut was about 1.1 times of the latter. The dc value of each orientation varies greatly. The lapping tests showed that the material removal rate (MRR) of Z-cut was lower than that of X-cut, for its high HI and E. Meanwhile, the surface quality of Z-cut was better than that of X-cut, for the larger dc of Z-cut. The research of mechanical properties of LN has guiding significance for its lapping process.

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Section: Methodsmentioning

confidence: 99%

Effect of the Anisotropy Mechanical Properties on LN Crystals Fixed-Abrasive Lapping

et al. 2020

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“…That may be because the soft polymers under load tend to ease wear through their deformation. 48 The schematic diagram of the worn section is shown in Figure 15a. The parameters of the worn section, width w and depth h, are extracted.…”

Section: Pa@epmentioning

confidence: 99%

Investigating the mechanical properties of epoxy resin composites modified by polyamide and nano‐Al₂O₃

Wang

Sun

Chen

et al. 2023

J of Applied Polymer Sci

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This work aims to evaluate the effects of polyamide (PA) and nano‐Al2O3 on the mechanical properties of epoxy resin (EP) and obtain the optimal addition content of PA and nano‐Al2O3. Epoxy matrix composite (EMC) is prepared via the solution blending method using the PA as the curing agent, toughening agent, and the nano‐Al2O3 modified with the silane coupling agent as the filler. Then it is tested for tensile, hardness, impact and wear resistance performances. The results show that when the ratio of PA to EP varies in the range of 40 wt.% to 80 wt.%, increasing the PA content can improve the impact toughness and plasticity of EMC but reduce its hardness, tensile strength and wear resistance. When the content of PA is 60 wt.% of EP, the elongation at break and impact strength of EMC are increased by 66.4% and 12.9%, respectively. The mechanical performances of EMC can be enhanced by loading nano‐Al2O3 fillers in a specific range. When the content of nano‐Al2O3 is 2 wt.% of EP, the elastic modulus, the tensile strength and the wear resistance of EMC are increased by 27.9%, 20.8% and 49%, respectively. The research can provide a valid technical reference for the industrial application of EMC materials.

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“…Due to the difficulty of machining, much attention is paid to the technological issues of processing the friction surfaces of sapphire. In [1], sapphire was tested for friction with a pin-on-disk test. The disc was coated with agglomerated diamond grit.…”

Section: Tribological Properties Of Sapphire Under Dry Friction Against Chromium and Zirconium Ceramicsmentioning

confidence: 99%

Tribological Properties of Sapphire under Dry Friction against Chromium and Zirconium Ceramics

Alisin

2022

Materials Research Proceedings

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Abstract. The issues of sapphire friction and wear in contact with chrome steel and zirconium ceramics are discussed in this article. The kinetic microindentation method is used to study the mechanical properties of sapphire in frictional contact in modelling experiments on the indentation of a Vickers indent. Taking into account the anisotropy of the mechanical properties of sapphire, the influence of the load and orientation of the indent on the modulus of elasticity and hardness is analyzed. It has been established that, under dry friction conditions it is promising the use of zirconium ceramics in the supports of devices operating under conditions in which the use of lubricants is impossible. The possibility of using a friction couple of sapphire-zirconium ceramics in friction units operating in open space is noted.

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Influence of agglomerated diamond abrasive wear on sapphire material removal behavior

Cited by 35 publications

References 24 publications

Effect of the Anisotropy Mechanical Properties on LN Crystals Fixed-Abrasive Lapping

Effect of the Anisotropy Mechanical Properties on LN Crystals Fixed-Abrasive Lapping

Investigating the mechanical properties of epoxy resin composites modified by polyamide and nano‐Al₂O₃

Tribological Properties of Sapphire under Dry Friction against Chromium and Zirconium Ceramics

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Influence of agglomerated diamond abrasive wear on sapphire material removal behavior

Cited by 35 publications

References 24 publications

Effect of the Anisotropy Mechanical Properties on LN Crystals Fixed-Abrasive Lapping

Effect of the Anisotropy Mechanical Properties on LN Crystals Fixed-Abrasive Lapping

Investigating the mechanical properties of epoxy resin composites modified by polyamide and nano‐Al2O3

Tribological Properties of Sapphire under Dry Friction against Chromium and Zirconium Ceramics

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Product

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Investigating the mechanical properties of epoxy resin composites modified by polyamide and nano‐Al₂O₃