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The Speedy Development of Artificial Diamond Industry in China

Liu Guangzhi

Strategic Study of CAE 2000, Volume 2, Issue 5,   Pages 31-33

Abstract:

This paper reviews the developing course of artificial diamond after the discovery of natural diamondThe yearly production of artificial diamond of China has been broke 5 × 108cts at 1999

Keywords： artificial diamond     artificial diamond film     Carbon (Carbonado)     poly-crystalline diamond    

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Recognition of diamond grains on surface of fine diamond grinding wheel

HUO Fengwei, JIN Zhuji, KANG Renke, GUO Dongming, YANG Chun

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3,   Pages 325-331 doi: 10.1007/s11465-008-0071-9

Abstract: spatial sampling interval and sampling area for instruments to measure the surface topography of a diamondTo recognize diamond grains, digital filtering is used to eliminate the high frequency disturbance fromthe measured 3D digital surface of the grinding wheel, the geometric features of diamond grains aregrain curvature, and distance between two adjacent diamond grains is proposed.grinding wheel, and the diamond grains are then recognized from the 3D digital surface.

Keywords： topography     frequency disturbance     filtering     analysis     wavelength    

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Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel

ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 350-355 doi: 10.1007/s11465-007-0061-3

Abstract: In this paper, a novel conditioning technique using copper bonded diamond grinding wheels of 91 yD grainfirst developed to precisely and effectively condition a nickel-electroplated monolayer coarse-grained diamondUnder optimised conditioning parameters, the super abrasive diamond wheel was well conditioned in termsof a minimized run-out error and flattened diamond grain surfaces of constant peripheral envelope.grinding optical glass featuring nano scale surface roughness, indicating the potential of super abrasive diamond

Keywords： ELID     peripheral     electrolytic in-process     nickel-electroplated monolayer     measurement    

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Ophiolite-Hosted Diamond: A New Window for Probing Carbon Cycling in the Deep Mantle Review

Dongyang Lian, Jingsui Yang

Engineering 2019, Volume 5, Issue 3,   Pages 406-420 doi: 10.1016/j.eng.2019.02.006

Abstract:

As reported in our prior work, we have recovered microdiamonds and other unusual minerals, including pseudomorph stishovite, moissanite, qingsongite, native elements, metallic alloys, and some crustal minerals (i.e., zircon, quartz, amphibole, and rutile) from ophiolitic peridotites and chromitites. These ophiolite-hosted microdiamonds display different features than kimberlitic, metamorphic, and meteoritic diamonds in terms of isotopic values and mineral inclusions. The characteristic of their light carbon isotopic composition implies that the material source of ophiolite-hosted diamonds is surface-derived organic matter. Coesite inclusions coexisting with kyanite rimming an FeTi alloy from the Luobusa ophiolite show a polycrystalline nature and a prismatic habit, indicating their origin as a replacement of stishovite. The occurrence in kyanite and coesite with inclusions of qingsongite, a cubic boron nitride mineral, and a high-pressure polymorph of rutile (TiO2 II) point to formation pressures of 10–15 GPa at temperatures ~1300 °C, consistent with depths greater than 380 km, near the mantle transition zone (MTZ). Minerals such as moissanite, native elements, and metallic alloys in chromite grains indicate a highly reduced environment for ophiolitic peridotites and chromitites. Widespread occurrence of diamonds in ophiolitic peridotites and chromitites suggests that the oceanic mantle may be a more significant carbon reservoir than previously thought. These ophiolite-hosted diamonds have proved that surface carbon can be subducted into the deep mantle, and have provided us with a new window for probing deep carbon cycling.

Keywords： Ophiolite-hosted diamond     Coesite     Stishovite     Podiform chromitites     Mantle transition zone    

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Multi-objective optimization of process parameters in Electro-Discharge Diamond Face Grinding based on

Ravindra Nath YADAV, Vinod YADAVA, G.K. SINGH

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 319-332 doi: 10.1007/s11465-013-0269-3

Abstract: In this paper, a hybrid machining process of Electrical Discharge Face Grinding (EDFG) and Diamond FaceGrinding (DFG) named as Electrical Discharge Diamond face Grinding (EDDFG) have been studied using a

Keywords： hybrid machining processes (HMPs)     electrical discharge diamond grinding (EDDG)     artificial neural network    

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Sub-nanometer finishing of polycrystalline tin by inductively coupled plasma-assisted cutting

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0751-5

Abstract: existence of grain boundary (GB) limits the surface roughness of polycrystalline tin after single-point diamond

Keywords： plasma-assisted cutting     polycrystalline tin     single-point diamond turning     surface roughness    

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Molecular dynamics modeling of a single diamond abrasive grain in grinding

Angelos P. MARKOPOULOS,Ioannis K. SAVVOPOULOS,Nikolaos E. KARKALOS,Dimitrios E. MANOLAKOS

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2,   Pages 168-175 doi: 10.1007/s11465-015-0337-y

Abstract:

In this paper the nano-metric simulation of grinding of copper with diamond abrasive grains, usingAn MD model of nano-scale grinding, where a single diamond abrasive grain performs cutting of a copper

Keywords： molecular dynamics     abrasive process     chip formation     cutting force     temperature    

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Study on Quenching of Engine Cylinder Block by YAG Laser

Zhang Guoshun,Zhang Taishi,Yang Zhaoxia,Zhang Jian,Li Hefen,Zhao Aiguo

Strategic Study of CAE 2001, Volume 3, Issue 3,   Pages 68-70

Abstract: In computer controlling system, the concept of horizontal diamond number and vertical diamond number

Keywords： YAG laser quenching     engine cylinder     vertical diamond number     horizontal diamond number     local densified    

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Micro-optical fabrication by ultraprecision diamond machining and precision molding

Hui LI, Likai LI, Neil J. NAPLES, Jeffrey W. ROBLEE, Allen Y. YI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 181-192 doi: 10.1007/s11465-017-0444-z

Abstract:

Ultraprecision diamond machining and high volume molding for affordable high precision high performancethis process, first high precision microoptical molds are fabricated using ultraprecision single point diamondToday optical molds, including freeform surfaces and microlens arrays, are routinely diamond machined

Keywords： ultraprecision machining     slow tool servo     fast tool servo     compression molding     injection molding     microlens arrays     optical fabrication    

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Investigation on drilling-grinding of CFRP

Yanming QUAN, Wenwang ZHONG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 60-63 doi: 10.1007/s11465-009-0008-y

Abstract: In this paper, the cemented or plated diamond core tools are tested to make holes in carbon fibre/epoxyResults indicate that the material removal mechanism of the two kinds of diamond tools is not like the

Keywords： composites     drilling-grinding     cemented/plated diamond     tool life     machined quality    

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Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 46-65 doi: 10.1007/s11465-017-0425-2

Abstract:

Optical microstructures are increasingly applied in several fields, such as optical systems, precision measurement, and microfluid chips. Microstructures include microgrooves, microprisms, and microlenses. This paper presents an overview of optical microstructure fabrication through glass molding and highlights the applications of optical microstructures in mold fabrication and glass molding. The glass-mold interface friction and adhesion are also discussed. Moreover, the latest advancements in glass molding technologies are detailed, including new mold materials and their fabrication methods, viscoelastic constitutive modeling of glass, and microstructure molding process, as well as ultrasonic vibration-assisted molding technology.

Keywords： optical microstructure     microgroove     microlens     glass molding process     single-point diamond cutting    

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Electricity-driven ammonia oxidation and acetate production in microbial electrosynthesis systems

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1476-5

Abstract:

• MES was constructed for simultaneous ammonia removal and acetate production.

Keywords： Biocathode     Carbon dioxide     Electrochemical oxidation     Graphite anode     Boron-doped diamond    

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Applications for Nanoscale X-Ray Imaging at High Pressure Article

Wendy L. Mao, Yu Lin, Yijin Liu, Jin Liu

Engineering 2019, Volume 5, Issue 3,   Pages 479-489 doi: 10.1016/j.eng.2019.01.006

Abstract:

Coupling nanoscale X-ray transmission microscopy (nanoTXM) with a diamond anvil cell (DAC) has exciting

Keywords： X-ray imaging     High pressure     Diamond anvil cell    

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A Breakthrough in Pressure Generation by a Kawai-Type Multi-Anvil Apparatus with Tungsten Carbide Anvils Review

Takayuki Ishii, Zhaodong Liu, Tomoo Katsura

Engineering 2019, Volume 5, Issue 3,   Pages 434-440 doi: 10.1016/j.eng.2019.01.013

Abstract:

Expansion of the pressure range of Kawai-type multi-anvil presses (KMAPs) with tungsten carbide (WC) anvils is called for, especially in the field of Earth science. However, no significant progress in pressure generation has been made for 40 years. Our recent studies have expanded the pressure generation of a KMAP with WC anvils to 65 GPa, which is the world record for high-pressure generation in this device and is more than 2.5 times higher than conventional pressure generation. We have also successfully generated pressures of about 50 GPa at high temperatures. This work reviews our recently developed technology for high-pressure generation. High-pressure generation at room temperature and at high temperature was attained by integration of the following techniques: ① a precisely aligned guide-block system, ② a high degree of hardness of the second-stage anvils, ③ tapering of the second-stage anvil faces, ④ a high-pressure cell consisting of materials with a high bulk modulus, and ⑤ high thermal insulation of the furnace. Our high-pressure technology will facilitate investigation of the phase stability and physical properties of materials under the conditions of the upper part of the lower mantle, and will permit the synthesis and characterization of novel materials.

Keywords： High pressure     Multi-anvil apparatus     Tungsten carbide anvil     Sintered diamond anvil     Lower mantle    

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Development of High-Pressure Multigrain X-Ray Diffraction for Exploring the Earth’s Interior Review

Li Zhang, Hongsheng Yuan, Yue Meng, Ho-kwang Mao

Engineering 2019, Volume 5, Issue 3,   Pages 441-447 doi: 10.1016/j.eng.2019.02.004

Abstract: Such high P–T experiments are commonly conducted in a laser-heated diamond anvil

Keywords： High pressure     Synchrotron X-ray     Multigrain     Diamond anvil cell     Minerals     Petrology     Earth’s interior    

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Title Author Date Type Operation

The Speedy Development of Artificial Diamond Industry in China

Liu Guangzhi

Journal Article

Recognition of diamond grains on surface of fine diamond grinding wheel

HUO Fengwei, JIN Zhuji, KANG Renke, GUO Dongming, YANG Chun

Journal Article

Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel

ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai

Journal Article

Ophiolite-Hosted Diamond: A New Window for Probing Carbon Cycling in the Deep Mantle

Dongyang Lian, Jingsui Yang

Journal Article

Multi-objective optimization of process parameters in Electro-Discharge Diamond Face Grinding based on

Ravindra Nath YADAV, Vinod YADAVA, G.K. SINGH

Journal Article

Sub-nanometer finishing of polycrystalline tin by inductively coupled plasma-assisted cutting

Journal Article

Molecular dynamics modeling of a single diamond abrasive grain in grinding

Angelos P. MARKOPOULOS,Ioannis K. SAVVOPOULOS,Nikolaos E. KARKALOS,Dimitrios E. MANOLAKOS

Journal Article

Study on Quenching of Engine Cylinder Block by YAG Laser

Zhang Guoshun,Zhang Taishi,Yang Zhaoxia,Zhang Jian,Li Hefen,Zhao Aiguo

Journal Article

Micro-optical fabrication by ultraprecision diamond machining and precision molding

Hui LI, Likai LI, Neil J. NAPLES, Jeffrey W. ROBLEE, Allen Y. YI

Journal Article

Investigation on drilling-grinding of CFRP

Yanming QUAN, Wenwang ZHONG

Journal Article

Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Journal Article

Electricity-driven ammonia oxidation and acetate production in microbial electrosynthesis systems

Journal Article

Applications for Nanoscale X-Ray Imaging at High Pressure

Wendy L. Mao, Yu Lin, Yijin Liu, Jin Liu

Journal Article

A Breakthrough in Pressure Generation by a Kawai-Type Multi-Anvil Apparatus with Tungsten Carbide Anvils

Takayuki Ishii, Zhaodong Liu, Tomoo Katsura

Journal Article

Development of High-Pressure Multigrain X-Ray Diffraction for Exploring the Earth’s Interior

Li Zhang, Hongsheng Yuan, Yue Meng, Ho-kwang Mao

Journal Article