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将商业纯钛切割成 １０ｍｍ×１０ｍｍ×２ｍｍ的样品，在丙酮中超声清洗１５ｍｉｎ，再于７０％乙醇溶液中超声清洗２０ｍｉｎ，去离子水清洗２０ｍｉｎ，然后进行两步化学处理。先将１００ｍｌ的 １８ｗｔ％ＨＣＩ与１００ｍｌ的 ４８ｗｔ％Ｈ２ＳＯ４混合，样品浸入３ｍｉｎ
Commercial pure titanium was cut into 10mm × 10mm × 2mm samples, ultrasonic cleaning in acetone for 15min, then in 70% ethanol solution ultrasonic cleaning 20min, deionized water cleaning 20min, and then two-step chemical treatment. First, 100 ml of 18 wt% HCI is mixed with 100 ml of 48 wt% H2SO4, and the sample is immersed for 3 minutes