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Diamond-based composite wave-absorbing material
The embodiment of the invention discloses a diamond-based composite wave-absorbing material. The method comprises the following steps: S1, carrying out graphitization treatment on the surfaces of nano-diamond particles to obtain graphitized diamond composite particles; s2, carrying out compression molding on the graphitized diamond composite particles to obtain a diamond-based composite wave-absorbing material green body; s3, the diamond-based composite wave-absorbing material green body is subjected to high-temperature and high-pressure treatment, and the diamond-based composite wave-absorbing material is obtained; the minimum reflection loss value of the diamond-based composite wave-absorbing material reaches-61.47 dB when the thickness is 5.5 mm, the maximum effective absorption bandwidth can reach 4.0 GHz when the thickness is 2.7 mm, the Vickers hardness ranges from 40 GPa to 60 GPa, the diamond-based composite wave-absorbing material belongs to a superhard material, the normal-temperature heat conductivity ranges from 3.4 W/m.K to 3.7 W/m.K, the initial oxidation temperature ranges from 1100 DEG C to 1250 DEG C, the corrosion current density ranges from 10 <-6 > A/cm < 2 > to 10 <-7 > A/cm < 2 >, the self-corrosion potential ranges from-200 mV to 0 mV, and the corrosion rate ranges from 0.001 mm/a to 0.005 mm/a. The material belongs to a corrosion-resistant material.
本发明实施例公开了金刚石基复合吸波材料；方法包括步骤：S1、纳米金刚石颗粒的表面进行石墨化处理，得到石墨化金刚石复合颗粒；S2、石墨化金刚石复合颗粒模压成型，得到金刚石基复合吸波材料坯体；S3、金刚石基复合吸波材料坯体经过高温高压处理，得到金刚石基复合吸波材料；金刚石基复合吸波材料在5.5mm时，最小反射损耗值达到‑61.47dB，在2.7mm时，有效吸收带宽最宽可达4.0GHz，其维氏硬度位于40～60GPa之间，属于超硬材料，常温热导率在3.4～3.7W/m·K之间，起始氧化温度在1100～1250℃之间，腐蚀电流密度在10‑6～10‑7A/cm2之间，自腐蚀电位在‑200～0mV之间，腐蚀速率位于0.001‑0.005mm/a之间，属于很耐腐蚀材料。
Diamond-based composite wave-absorbing material
The embodiment of the invention discloses a diamond-based composite wave-absorbing material. The method comprises the following steps: S1, carrying out graphitization treatment on the surfaces of nano-diamond particles to obtain graphitized diamond composite particles; s2, carrying out compression molding on the graphitized diamond composite particles to obtain a diamond-based composite wave-absorbing material green body; s3, the diamond-based composite wave-absorbing material green body is subjected to high-temperature and high-pressure treatment, and the diamond-based composite wave-absorbing material is obtained; the minimum reflection loss value of the diamond-based composite wave-absorbing material reaches-61.47 dB when the thickness is 5.5 mm, the maximum effective absorption bandwidth can reach 4.0 GHz when the thickness is 2.7 mm, the Vickers hardness ranges from 40 GPa to 60 GPa, the diamond-based composite wave-absorbing material belongs to a superhard material, the normal-temperature heat conductivity ranges from 3.4 W/m.K to 3.7 W/m.K, the initial oxidation temperature ranges from 1100 DEG C to 1250 DEG C, the corrosion current density ranges from 10 <-6 > A/cm < 2 > to 10 <-7 > A/cm < 2 >, the self-corrosion potential ranges from-200 mV to 0 mV, and the corrosion rate ranges from 0.001 mm/a to 0.005 mm/a. The material belongs to a corrosion-resistant material.
本发明实施例公开了金刚石基复合吸波材料；方法包括步骤：S1、纳米金刚石颗粒的表面进行石墨化处理，得到石墨化金刚石复合颗粒；S2、石墨化金刚石复合颗粒模压成型，得到金刚石基复合吸波材料坯体；S3、金刚石基复合吸波材料坯体经过高温高压处理，得到金刚石基复合吸波材料；金刚石基复合吸波材料在5.5mm时，最小反射损耗值达到‑61.47dB，在2.7mm时，有效吸收带宽最宽可达4.0GHz，其维氏硬度位于40～60GPa之间，属于超硬材料，常温热导率在3.4～3.7W/m·K之间，起始氧化温度在1100～1250℃之间，腐蚀电流密度在10‑6～10‑7A/cm2之间，自腐蚀电位在‑200～0mV之间，腐蚀速率位于0.001‑0.005mm/a之间，属于很耐腐蚀材料。
Diamond-based composite wave-absorbing material
金刚石基复合吸波材料
SHAN CHONGXIN (author) / YANG XIGUI (author) / ZHANG YINGJIE (author) / ZANG JINHAO (author) / LAI SHOULONG (author)
2024-12-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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