Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
3.4
Journals
Materials
Special Issues
Advanced Design, Synthesis, and Industrial Applications in Diamond Materials
materials-logo
Submit to Materials Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Advanced Design, Synthesis, and Industrial Applications in Diamond Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: closed (10 November 2023) | Viewed by 5325

Special Issue Editor

Dr. Guojiang Fan

E-Mail Website
Guest Editor
PDC Engineering LLC, Salt Lake City, UT 84121, USA
Interests: diamond; HPHT; PDC cutter development; oil and gas

Special Issue Information

Dear Colleagues,

The first synthetic diamond was made by GE in 1954 using high pressure and high temperature (HPHT) techniques and by simulating the formation conditions of natural diamonds well below the Earth’s crust, requiring several gigapascal pressure to stablize the diamond phase at high temperatures. Since then, research activities on synthetic diamonds have drawn tremendous attention worldwide. Following the development of HPHT technologies, other synthetic technologies, including chemical vapor deposition (CVD), have been developed as well.

In this Special Issue, recent advances covering basic research and industrial applications of diamond and diamond-related materials will be addressed. Both original research papers and review articles are welcome. The specific topics include but are not limited to the following: (1) diamond synthetic technologies; (2) processing and characterization; (3) diamond-related materials, i.e., cBN, graphene, etc.; and (4) various industrial applications, i.e., rock drilling for the oil/gas exploration, etc.

Thanks for your contributions.

Dr. Guojiang Fan
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • diamond
  • high pressure and high temperature
  • cBN and graphene
  • superhard materials
  • processing and characterization
  • mechanical and functional properties
  • industrial applications
  • diamond for the rock drilling

Published Papers (4 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

13 pages, 4676 KiB  
Article
Densification and Surface Carbon Transformation of Diamond Powders under High Pressure and High Temperature
by Rongqi Mao, Xiwei Cui, Jinglin Hao, Sizhuang Zhao, Shuai Hou, Fuli Lan, Yanbiao Li, Lifen Deng and He Li
Materials 2024, 17(3), 603; https://doi.org/10.3390/ma17030603 - 26 Jan 2024
Viewed by 565
Abstract
A new type of poly-diamond plate without a catalyst was produced via the high-pressure high-temperature (HPHT) compression of diamond powders. The densification of diamond powders and sp3 to sp2 carbon on the surface under HPHT compression was investigated through the characterization [...] Read more.
A new type of poly-diamond plate without a catalyst was produced via the high-pressure high-temperature (HPHT) compression of diamond powders. The densification of diamond powders and sp3 to sp2 carbon on the surface under HPHT compression was investigated through the characterization of the microstructure, Raman spectroscopy analysis and electrical resistance measurement. The densification and sp3-sp2 transformation on the surface are mainly affected by the pressure, temperature and particle size. The quantitative analysis of the diamond sp3 and sp2 carbon amount was performed through the peak fitting of Raman spectra. It was found that finer diamond particles under a higher temperature and a lower pressure tend to produce more sp2 carbon; otherwise, they produce less. In addition, it is interesting to note that the local residual stresses measured using Raman spectra increase with the diamond particle size. The suspected reason is that the increased particle size reduces the number of contact points, resulting in a higher localized pressure at each contact point. The hypothesis was supported by finite element calculation. This study provides detailed and quantitative data about the densification of diamond powders and sp3 to sp2 transformation on the surface under HPHT treatment, which is valuable for the sintering of polycrystalline diamonds (PCDs) and the HPHT treatment of diamonds. Full article
(This article belongs to the Special Issue Advanced Design, Synthesis, and Industrial Applications in Diamond Materials)
►▼ Show Figures

Figure 1

12 pages, 5731 KiB  
Article
Microstructural Evolution of Diamond-Based Composites at High Temperature and High Pressure
by Tianxu Qiu, Jianwei Feng, Bo Cai, Guojiang Fan, Wei Zhang and Yong Liu
Materials 2022, 15(24), 8753; https://doi.org/10.3390/ma15248753 - 08 Dec 2022
Cited by 2 | Viewed by 1097
Abstract
Improving the toughness of diamond composites has become an industrial demand. In this work, Co50Ni40Fe10 multi-element alloy was designed as binder for diamond-based composites prepared by high temperature and high pressure (HTHP). Two methods of mixing-sintering and infiltration-sintering [...] Read more.
Improving the toughness of diamond composites has become an industrial demand. In this work, Co50Ni40Fe10 multi-element alloy was designed as binder for diamond-based composites prepared by high temperature and high pressure (HTHP). Two methods of mixing-sintering and infiltration-sintering were used to prepare diamond-based composites with different diamond contents. The phase diagrams of Co-C and Co50Ni40Fe10-C at 6 GPa were calculated by Thermo-Calc. The results show that Co50Ni40Fe10 multi-element alloy promotes the sintering of diamond powder than element Co. The transverse rupture strength (TRS) of sintered diamond with Co50Ni40Fe10 (Co50Ni40Fe10-75 vol% diamond) is higher than that of Co-Comp (Co-75 vol% diamond). The TRS of polycrystalline diamond (PCD) with Co50Ni40Fe10 alloy binder is up to 1360.3 MPa, which is 19.2% higher than Co-PCD. Compared with Co, using Co50Ni40Fe10 as binder results in a less metal residue in PCD, while the metal cluster area is smaller and the metal distribution is more uniform. Full article
(This article belongs to the Special Issue Advanced Design, Synthesis, and Industrial Applications in Diamond Materials)
►▼ Show Figures

Figure 1

11 pages, 4398 KiB  
Article
Surface Morphology and Spectroscopic Features of Homoepitaxial Diamond Films Prepared by MWPACVD at High CH4 Concentrations
by Javier Sierra Gómez, José Vieira, Mariana Amorim Fraga, Evaldo Jose Corat and Vladimir Jesus Trava-Airoldi
Materials 2022, 15(21), 7416; https://doi.org/10.3390/ma15217416 - 22 Oct 2022
Cited by 1 | Viewed by 1238
Abstract
Single crystal diamond (SCD) is a promising material to satisfy emerging requirements of high-demand fields, such as microelectronics, beta batteries and wide-spectrum optical communication systems, due to its excellent optical characteristics, elevated breakdown voltage, high hardness and superior thermal conductivity. For such applications, [...] Read more.
Single crystal diamond (SCD) is a promising material to satisfy emerging requirements of high-demand fields, such as microelectronics, beta batteries and wide-spectrum optical communication systems, due to its excellent optical characteristics, elevated breakdown voltage, high hardness and superior thermal conductivity. For such applications, it is essential to study the optically active defects in as-grown diamonds, namely three-dimensional defects (such as stacking faults and dislocations) and the inherent defects arising from the cultivation method. This paper reports the growth of SCD films on a commercial HPHT single-crystal diamond seed substrate using a 2.45 GHz microwave plasma-assisted chemical vapor deposition (MWPACVD) technique by varying the methane (CH4) gas concentration from 6 to 12%, keeping the other parameters constant. The influence of the CH4 concentration on the properties, such as structural quality, morphology and thickness, of the highly oriented SCD films in the crystalline plane (004) was investigated and compared with those on the diamond substrate surface. The SCD film thickness is dependent on the CH4 concentration, and a high growth rate of up to 27 µm/h can be reached. Raman spectroscopy, high-resolution X-ray diffractometry (HRXRD), scanning electron microscopy (SEM), surface profilometry and optical microscopic analyses showed that the produced homoepitaxial SCD films are of good quality with few macroscopic defects. Full article
(This article belongs to the Special Issue Advanced Design, Synthesis, and Industrial Applications in Diamond Materials)
►▼ Show Figures

Figure 1

9 pages, 1481 KiB  
Article
Fabrication of Boron-Doped Diamond Film Electrode for Detecting Trace Lead Content in Drinking Water
by Liang Wu, Xinghong Liu, Xiang Yu, Shijue Xu, Shengxiang Zhang and Shiman Guo
Materials 2022, 15(17), 6013; https://doi.org/10.3390/ma15176013 - 31 Aug 2022
Cited by 3 | Viewed by 1725
Abstract
This work aimed to fabricate a boron-doped diamond film electrode for detecting trace amounts of lead in drinking water so as to safeguard it for the public. Available detectors suffer from high costs and complex analytical processes, and commonly used electrodes for electrochemical [...] Read more.
This work aimed to fabricate a boron-doped diamond film electrode for detecting trace amounts of lead in drinking water so as to safeguard it for the public. Available detectors suffer from high costs and complex analytical processes, and commonly used electrodes for electrochemical detectors are subject to a short life, poor stability, and secondary pollution during usage. In this work, a boron-doped diamond (BDD) electrode was prepared on a porous titanium substrate, and the microstructure and electrochemical properties of the BDD electrode were systematically studied. Moreover, the stripping parameters were optimized to obtain a better signal response and determine the detection index. As a result, diamond particles were closely arranged on the surface of the BDD electrode with good phase quality. The electrode showed high electrochemical activity, specific surface area, and low charge transfer resistance, which can accelerate the stripping reaction process of Pb2+. The BDD electrode presented a low detection limit of 2.62 ppb for Pb2+ under an optimized parameter set with an enrichment time of 150 s and a scanning frequency of 50 Hz. The BDD electrode also has good anti-interference ability. The designed BDD electrode is expected to offer a reliable solution for the dilemma of the availability of metal electrodes and exhibits a good application prospect in the trace monitoring of Pb2+ content in drinking water. Full article
(This article belongs to the Special Issue Advanced Design, Synthesis, and Industrial Applications in Diamond Materials)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-4
Back to TopTop