单壁碳纳米管纯度准确测量中热重分析的有效测量
被引量:1
摘要
单壁碳纳米管纯度的准确测量在其国际贸易中具有直接的决定作用。单壁碳纳米管纯度测量中的热重分析有效测量与仪器校准、氧化温度定义以及其他测量条件密切相关。其有效程序为:采用居里点标准样品和标准砝码校准热重分析仪的温度和重量;定义氧化温度为失重最大时的温度;升温速率为5-1℃/min;氧气流速为10—15mL/min;样品重量约4mg,压实放在样品槽中。
出处
《计量技术》
2011年第12期3-6,共4页
Measurement Technique
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