Accession Number:

ADP019731

Title:

Laser Fabrication and Characterization of Adhesive-Free Joints for Encapsulation of Biomedical Implant Devices

Descriptive Note:

Conference paper

Corporate Author:

WAYNE STATE UNIV DETROIT MI COLL OF ENGINEERING

Personal Author(s):

• Newaz, G.
• Georgiev, D. G.
• Mian, A.
• Auner, G.
• Herfurth, H.
• Witte, R.

Report Date:

2005-01-01

Pagination or Media Count:

6.0

Abstract:

Laser-fabricated joints of sub-millimeter widths between biocompatible, dissimilar materials have the potential for applications as encapsulation of miniature implant biomedical devices. In this work, we briefly describe the laser joining method of a very promising system, polyimidetitanium-coated borosilicate glass, and present and discuss results from characterization of such laser joints by means of mechanical failure tensile tests, optical microscopy, X-ray photoelectron spectroscopy XPS and raman spectroscopy. Our results suggest the formation of strong chemical bonds between Ti-containing species and certain polymeric functional groups. Mechanical tensile strength failure test showed that such joint experience only limited, disappearing with time degradation as a result of soaking in physiological solutions.

Descriptors:

• *GLASS
• *BORON
• *SILICATES
• *LASER WELDING
• SYMPOSIA
• POLYMERS
• FABRICATION
• CHEMICAL BONDS
• ENCAPSULATION
• TITANIUM
• BIOMEDICINE
• IMPLANTATION

Subject Categories:

• Inorganic Chemistry
• Ceramics, Refractories and Glass
• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE