Effects of Negative Bias on the Structure of Ti Film and its Adhesiveness to the Base by Plasma

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Ti film on AISI 201 was prepared by plasma. The film was characterized and analyzed by using a variety of analytical techniques, such as XRD, SEM and universal test machine. Ti films were deposited on AISI 201 stainless steel substrate, it was found that of Ti film has a different microstructure in various negative bias. And film density is connected with bias. When bias rose from the 15V to 100V, the film density increased from 3.82 g/cm3 to 4.28 g/cm3. After bias rose from the 100V to 180V, film density decreased from 4.28 g/cm3 to 4.13g/cm3. And also, due to the microstructural changes, the adhesiveness of Ti films at the AISI 201 increased from 1.16 MPa to maximum of 3.87 MPa, and then decreased. There is a similar maximum value of approximately 7.53 MPa at the AISI 304.

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592-595

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October 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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