**Abstract**
The development of composite superhard materials has been significantly influenced by the successful creation of synthetic diamonds by General Electric (GE) in the 1950s. This early stage was marked by limited technological capabilities and small-scale production, laying the groundwork for future advancements. Over time, the industry evolved with key innovations such as the development of polycrystalline diamond (PCD) and polycrystalline cubic boron nitride (PCBN), which revolutionized cutting and drilling tools. Today, the production of polycrystalline diamond composite sheets is highly advanced, meeting the needs of various geological and industrial applications while greatly improving efficiency.
**Development History of Composite Superhard Materials**
The growth of the composite superhard materials industry began with GE’s breakthrough in synthetic diamond technology in the 1950s. During this early phase, the industry was in its infancy, with limited technical capacity and small-scale production. However, the introduction of PCD and PCBN in 1977 marked a turning point, leading to significant improvements in performance and application fields, especially in drilling and cutting tools. China entered the scene later, achieving its first success in artificial diamond production in 1963. Initially used for abrasives, the industry experienced rapid growth after 2000, driven by process innovations that reduced costs and increased output. Today, China accounts for nearly 80% of global diamond production.
**Market Size and Future Prospects**
The market for composite superhard materials is expanding rapidly, driven by increasing demand from downstream industries. According to industry reports, the domestic output value of superhard materials is growing steadily, with high-grade diamonds accounting for 60–70% of the market. The demand for PCD composites in oil and gas drilling is closely tied to the energy sector, where China’s growing reliance on imported oil and rising natural gas consumption are fueling growth. With shale gas becoming a key focus of national energy strategy, the potential for PCD-based tools in this area is immense. Additionally, the coal and mining sectors continue to drive demand for diamond composite sheets, further expanding the market.
**Competitive Landscape**
Globally, the high-end superhard materials market is dominated by companies like Element Six, DI, Sumitomo, and Rijin, which have strong technological capabilities and established brand presence. In China, while several companies have made progress in producing high-quality diamond composites, they still face challenges in competing with international leaders. However, China benefits from a well-developed supply chain and cost advantages, allowing it to gain a foothold in both domestic and international markets. Continued investment in R&D and quality improvement will be crucial for Chinese firms to capture a larger share of the high-end market.
**Conclusion**
With ongoing technological advancements and increasing demand across multiple sectors, the composite superhard materials industry is poised for sustained growth. China's role in this industry is evolving, with the potential to become a major player in the global market if it continues to invest in innovation and quality.
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