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郑州华晶金刚石股份有限公司

WT:CVD金刚石生长技术的意义

关键词 CVD , 金刚石|2021-04-15 09:55:17|来源 中国超硬材料网
摘要 21世纪是由技术的快速发展推动的,这些技术加强了创造具有高导电特性的新材料的动力。因此,鉴于实验室生长钻石的高物理性质及其与其他材料结合的多功能性,人造钻石不仅作为珠宝行业的材料,...

21世纪是由技术的快速发展推动的,这些技术加强了创造具有高导电特性的新材料的动力。

       因此,鉴于实验室生长钻石的高物理性质及其与其他材料结合的多功能性,人造钻石不仅作为珠宝行业的材料,而且在工业和技术领域都有巨大的需求。在改进和适应工业应用的金刚石技术的过程中,重要的是不断升级高质量的设备,合格工程师的科学知识和经验,当然还有金刚石生长技术。

MPCVD技术允许工业生产各种金刚石材料(单晶和多晶),成本更低,结构更完美,纯度更高。

       WONDER TECHNOLOGIES

       自2016年以来,"WONDER TECHNOLOGIES"LLC一直在积极开发合成金刚石领域的技术,改进金刚石材料生产方法,并努力实现基于它们的产品的广泛商业实施。

       WT是金刚石生产技术的所有者,和MWCVD反应器"WT1000",专为金刚石的生长创建。 "WT1000"反应器的优点是生长过程的最高可控性,金刚石沉积的速度,所得金刚石材料的质量及其低成本,组装和组件的高质量,整体易于操作和维护。

       WT开发的基础是CVD金刚石领域领先的专家和从业者35年来进行的科学研究和应用工作的结果。 我们的团队成员在国际期刊上发表了600多篇文章,主题是金刚石的化学气相沉积,其激光加工,结构和性质的研究以及实际应用。 该公司的研发中心位于俄罗斯莫斯科,并与领先科学家进行战略合作。

       核心技术发展

       迄今为止,我们已经开发并优化了各种技术,以获得具有可控性能的各种金刚石材料,其加工方法和合金化。截至目前的核心技术发展:根据经过仔细验证的具有高重复性的配方,以下是:

       在表面上生长具有高厚度均匀性的4"直径多晶金刚石板。多晶薄膜是最传统的金刚石材料类型之一。我们开发了生产直径达100mm、厚度达2mm的高品质薄膜和板材的技术。

       生长尺寸为10х10х7mm3的单晶金刚石。 我们可以进行高达6mm厚的单晶金刚石层的高速合成。 所得板的横向尺寸仅受基材尺寸的限制,可以达到15х15mm2

        生产基于多晶金刚石的光学元件,以及用于控制高功率IR激光束的衍射金刚石光学元件。

       切削工具上的多晶金刚石沉积。已经开发了一种在切割工具上等离子体化学沉积超硬金刚石涂层的技术,用于高效加工航空航天工业中的新型复合材料,包括CFRP和玻璃纤维。

       激光研磨和抛光直径达4英寸的聚晶金刚石板的技术。

       应用领域

       由于我们的技术,可以创建和实施广泛的高科技产品,用于以下领域:

       电子产品。金刚石可用于生产基于宽带半导体的器件中的散热基板和涂层。使用"GaN-Diamond"异质结构将有可能创建新一代的微型和高能效高功率微波电子,放大器,Led和其他电子设备,特别是5G网络基础设施所必需的电子设备。此外,基于金刚石,可以创建声电子器件,例如GHz范围表面声波上的滤波器。

       医学。化学稳定性,生物相容性和表面处理的可能性使纳米金刚石颗粒成为人体最有前途和安全的药物载体之一。可以改变纳米金刚石的表面以将药物附着在其上并确保其靶向递送。另一个应用是来自掺杂有硅或氮原子的纳米金刚石颗粒的荧光生物标记物,以创建发光中心。其荧光的高稳定性使得可以观察药物的递送及其从体内的排泄。使用纳米金刚石生物标志物进行诊断,对患者的健康和福祉的影响最小。

       生态。基于掺杂金刚石电极的电化学氧化方法是企业废水处理最有效的方法。金刚石的使用提供了其他方法无法实现的水净化的速度和完整性,包括使用其他电极材料进行电化学氧化。金刚石的一个重要优势是其耐腐蚀性和耐化学性,这确保了电极在腐蚀性环境中的长使用寿命。

       光学。 从紫外线到微波范围内的透明度,高导热性,抗辐射性和大孔径使CVD金刚石成为一种独特的光学材料。 其应用之一是用于输出来自激光器,太赫兹和同步辐射的重型IR辐射的窗口。 折射X射线透镜可以由钻石制成。另一个应用领域是通过光刻或激光加工创建的可见光、红外和太赫兹范围内的高功率辐射源的衍射光学器件。

       安全。钻石在安全领域的潜在用途之一是发光纳米金刚石标签,以保护供应链。钻石的发光中心受到周围材料的可靠保护,并且不受热,高压,化学环境以及在各种产品的标签和包装过程中执行的程序的影响。这种方法使您可以在任何领域有效地保护包装和产品本身免受假冒,包括在存在生物相容性和人类安全性要求的情况下。

       Wonder Technologies坚持技术金刚石解决方案动态和可持续发展的立场,专注于开发和获得多晶和单晶金刚石材料的合成,改性和加工的工业技术,制造基于它的产品,以及其合成设备的开发和创造。

       The 21st century is driven by the rapid development of technologies that strengthen the dynamics of creating new materials with high conductive properties.

       Therefore, there is a huge demand for artificial diamonds not only as a material in the jewelry industry but also in the industrial and technological sphere, given the high physical properties of lab-grown diamond and its versatility in combination with other materials. In the process of improving and adapting diamond technologies for industrial applications, it is important to constantly upgrade high-quality equipment, scientific knowledge and experience of qualified engineers, and, of course, the technology of diamond growth.

MPCVD technology allows the industrial production of various diamond materials (mono - and polycrystalline) with reduced cost, a high level of structural perfection, and purity.

       WONDER TECHNOLOGIES

       Since 2016, "WONDER TECHNOLOGIES" LLC has been actively developing technologies in the field of synthetic diamond, improving methods of diamond materials production and striving for widespread commercial implementation of products based on them.

       WT is the owner of the production technology, and MPCVD reactors "WT1000", created specifically for the growth of diamond. The advantage of the "WT1000" reactors is the highest controllability of growth processes, the speed of diamond deposition, the quality of the resulting diamond materials and their low cost, the high quality of assembly and components, the overall ease of operation and maintenance.

       The basis of WT development is the results of scientific researches and applied works carried out for 35 years by leading experts and practitioners in the field of CVD diamond. Our team members have published more than 600 articles in international journals on the topic of chemical vapor deposition of diamond, its laser processing, the study of structure and properties, as well as practical applications. The company’s R&D center is located in Moscow, Russia, and strategically partnered with the leading scientists of The Lebedev Physical Institute (LPI RAS) and the Prokhorov General Physics Institute (GPI Russian Academy of Science).

       CORE TECHNOLOGICAL DEVELOPMENTS

       To date, we have developed and optimized technologies for obtaining a wide range of diamond materials with controlled properties, methods of their processing, and alloying. Core technological developments as of this date, according to carefully verified recipes with high repeatability are the following:

       Growth of 4'' diameter polycrystalline diamond plates with high thickness uniformity over the surface. Polycrystalline films are one of the most traditional types of diamond materials. We have developed technologies for producing high-quality films and plates up to 100 mm in diameter and up to 2 mm thick.

        Growth of a single-crystal diamond with a size of 10х10х7 mm3. We can perform high-speed synthesis of single-crystal diamond layers up to 6 mm thick. The lateral dimensions of the resulting plates are limited only by the size of the substrate and can reach 15х15 mm2.

        Production of optical elements based on polycrystalline diamond, as well as diffractive diamond optical elements for controlling high-power IR laser beams.

        Polycrystalline diamond deposition on cutting tools. A technology for plasma-chemical deposition of superhard diamond coatings on cutting tools has been developed for efficient processing of new composite materials in the aerospace industry, including CFRP and fiberglass.

       Technology for laser grinding and polishing of polycrystalline diamond plates up to 4'' in diameter.

APPLICATION AREAS

       As a result of our technologies, a wide scope of high-tech products can be created and implemented for use in the following areas:

       Electronics. Diamond can be used to produce heat-dissipating substrates and coatings in devices based on wide-band semiconductors. The use of “GaN-Diamond” heterostructures will make it possible to create miniature and energy-efficient high-power microwave electronics, amplifiers, LEDs, and other electronic devices of a new generation, in particular, necessary for the infrastructure of 5G networks. Also, based on diamond, it is possible to create acoustoelectronic devices, such as filters on the surface acoustic waves of the GHz range.

       Medicine. Chemical stability, biocompatibility, and the possibility of surface treatment make nanodiamond particles one of the most promising and safe drug carriers for the body. The surface of a nanodiamond can be changed to attach a drug to it and ensure its targeted delivery. Another application is fluorescent biomarkers from nanodiamond particles doped with silicon or nitrogen atoms to create glow centers. The high stability of their fluorescence makes it possible to observe the delivery of drugs and their excretion from the body. Diagnostics using nanodiamond biomarkers take place with minimal consequences for the health and well-being of patients.

       Ecology. The method of electrochemical oxidation based on doped diamond electrodes is the most effective for wastewater treatment of enterprises. The use of diamond provides a speed and completeness of water purification that is unattainable by other methods, including electrochemical oxidation with other electrode materials. An important advantage of a diamond is its corrosion and chemical resistance, which ensures a long service life of the electrodes in aggressive environments.

       Optics. Transparency in the range from UV to microwave, high thermal conductivity, radiation resistance, and large aperture make CVD diamond a unique optical material. One of its applications is windows for outputting heavy-duty IR radiation from lasers, THz, and synchrotron radiation. Refractive X-ray lenses can be made from diamonds. Another area of application is diffraction optics for high-power radiation sources in the visible, IR, and THz ranges, created by photolithography or laser processing.

       Safety. One of the potential uses of diamonds in the field of safety is luminescent nanodiamond labels to protect supply chains. The centers of luminescence in the diamond are reliably protected by the surrounding material, and they are not affected by heat, high pressure, chemical environment and procedures carried out during the labeling and packaging of various products. This method allows to effectively protect both the packaging and the products themselves from counterfeiting in any field, including in the presence of requirements for biocompatibility, and safety for humans.

       Wonder Technologies adheres to the position of dynamic and sustainable development of technological diamond solutions, focused on developing and obtaining industrial technologies of synthesis, modification, and processing of polycrystalline and monocrystalline diamond materials, manufacturing products based on it, as well as development and creation of equipment for its synthesis.

 

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