Molybdenum as a new binder for polycrystalline diamond (PCD) prepared by HPHT sintering

IF 6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2023-06-01 Epub Date: 2023-02-14 DOI:10.1016/j.ceramint.2023.02.098

Quézia Manuela Gonçalves Laurindo , Joice Medeiros Borges Rosa , Renan da Silva Guimarães , Rafael Delorence Lugon , Yutao Xing , Ludiane Silva Lima , Marcello Filgueira

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引用次数: 3

Abstract

In this study, molybdenum was used as a binder to prepare sintered polycrystalline diamond (PCD) produced by HPHT technology. The effect of molybdenum as a binder on the comprehensive properties of the PCD was investigated at different temperatures. A detailed characterization of the produced materials demonstrates that molybdenum reacted nearly completely with the carbon of the diamond to form a hybrid matrix (Mo/MoC/Mo₂C). Microstructural images of the composites evidence a homogeneous distribution of the binder phase and a preserved integrity of the constitutive particles. Based on Raman spectroscopy data, the proximity between the coefficients of thermal expansion (Mo/Diamond) helped maintain composites with a high-quality factor. Regarding the variation in experimental conditions, the increase in temperature was conducive to achieving composites with higher microstructural contiguity. From these results, it can be inferred that molybdenum may be a prospective alternative to be employed as a binding phase in producing well-sintered PCDs.

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钼作为高温高温烧结制备聚晶金刚石(PCD)的新型粘结剂

本研究以钼为粘结剂制备高温高温烧结多晶金刚石(PCD)。研究了钼作为粘结剂在不同温度下对PCD综合性能的影响。对所制备材料的详细表征表明，钼与金刚石的碳几乎完全反应形成杂化基体(Mo/MoC/Mo2C)。复合材料的显微结构图像证明了粘结相的均匀分布和本构颗粒的完整性。根据拉曼光谱数据，热膨胀系数(Mo/Diamond)之间的接近有助于保持复合材料的高质量系数。从实验条件的变化来看，温度的升高有利于获得较高的微观组织连续度的复合材料。从这些结果可以推断，钼可能是一种有前途的替代品，可以作为一种结合相，用于生产烧结良好的pcd。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.