摘要：【中文】本发明的一种高温高压一步化学法制备黄铁矿型二硫化铁的方法属于功能材料制备的技术领域，主要步骤有：将硫化亚铁和硫粉均匀混合得到混合物；将混合物粉压成型制备成块体；将粉压成型的块体置于高于一个大气压的高压下，保持高于300℃的高温进行反应，得到黄铁矿型二硫化铁。本发明反应原料易获得且价格低廉，并且直接选用硫化亚铁为原料，简化了反应的过程，反应原料与产物均为固态，中间产物不会排放到环境中，反应体系抗干扰能力强，反应条件宽泛易控制。 【EN】The invention discloses a method for preparing pyrite type iron disulfide by a high-temperature high-pressure one-step chemical method, which belongs to the technical field of functional material preparation, and mainly comprises the following steps: uniformly mixing ferrous sulfide and sulfur powder to obtain a mixture; the mixture is prepared into blocks by powder pressing; and placing the powder-pressed block under the high pressure higher than one atmospheric pressure, and keeping the high temperature higher than 300 ℃ for reaction to obtain the pyrite type iron disulfide. The invention has the advantages of easily obtained reaction raw materials, low price, simplified reaction process by directly selecting ferrous sulfide as the raw material, solid reaction raw materials and products, no discharge of intermediate products into the environment, strong anti-interference capability of the reaction system and wide and easily controlled reaction conditions.

摘要：【中文】本发明的一种利用异形{100}籽晶高温高压合成金刚石单晶的方法属于晶体生长中的金刚石单晶生长的技术领域。主要步骤包括获取籽晶、确定合成工艺参数、组装腔体、高温高压合成金刚石等。本发明步骤简单、可重复性高，使用非常规的籽晶依然能够得到常规的金刚石晶体，使籽晶的获取难度大大降低，合成的金刚石晶体质量良好，且根据需要可以生长成不同形貌的金刚石。 【EN】The invention discloses a method for synthesizing a diamond single crystal by using special-shaped {100} seed crystals at high temperature and high pressure, belonging to the technical field of diamond single crystal growth in crystal growth. The method mainly comprises the steps of obtaining seed crystals, determining synthesis process parameters, assembling a cavity, synthesizing diamond at high temperature and high pressure and the like. The method has simple steps and high repeatability, can still obtain the conventional diamond crystal by using the unconventional seed crystal, greatly reduces the difficulty of obtaining the seed crystal, has good quality of the synthesized diamond crystal, and can grow the diamond with different shapes according to the requirement.

摘要：【中文】本发明的一种异形{111}籽晶合成金刚石单晶的方法属于晶体生长中的金刚石单晶生长的技术领域。主要步骤包括获取籽晶、确定合成工艺参数、组装腔体、高温高压合成金刚石等。本发明步骤简单、可重复性高，使用非常规的籽晶依然能够得到常规的金刚石晶体，使籽晶的获取难度大大降低，合成的金刚石晶体质量良好，且根据需要可以生长成不同形貌的金刚石。 【EN】The invention discloses a method for synthesizing a diamond single crystal by using special-shaped {111} seed crystals, and belongs to the technical field of diamond single crystal growth in crystal growth. The method mainly comprises the steps of obtaining seed crystals, determining synthesis process parameters, assembling a cavity, synthesizing diamond at high temperature and high pressure and the like. The method has simple steps and high repeatability, can still obtain the conventional diamond crystal by using the unconventional seed crystal, greatly reduces the difficulty of obtaining the seed crystal, has good quality of the synthesized diamond crystal, and can grow the diamond with different shapes according to the requirement.