Effects of a silica spin-on interlayer and heating mode on the joining of zirconia and MaCor

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 357; no. 1; pp. 67 - 74
• Main Authors: Zeng, L, Case, E.D, Crimp, M.A
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 25.09.2003; Elsevier
• Subjects: Applied sciences; Building materials. Ceramics. Glasses; Ceramic industries; Chemical industry and chemicals; Conventional and microwave heating; Exact sciences and technology; Interfacial microstructures; Joining; Miscellaneous; Spin-on interlayers; Technical ceramics; TEM; Interfacial microstructures; Joining; Spin-on interlayers; TEM; Conventional and microwave heating; Buffer layer; Machinable glass ceramics; Stabilized zirconia; Amorphous state; Microwave heating; Experimental study; Silica; Oxide ceramics; Thin film; Interface structure; Transmission electron microscopy; Zirconium oxide; Transition metal compounds; Spin coating; Microstructure
• ISSN: 0921-5093; 1873-4936
• DOI: 10.1016/S0921-5093(03)00247-8

Transmission electron microscopy (TEM) has been used to assess the role of thin spin-on interlayers and the effects of heating mode, joining temperature, and time on microstructure development in the process of joining zirconia and MaCor™. Sintered polycrystalline partially stabilized zirconia (PSZ) specimens and commercial machinable glass ceramic (MaCor™) have been joined with or without a thin (∼400 nm) amorphous silica interlayer. After joining at different temperatures, times, and with and without the silica interlayer, the interface between zirconia and MaCor™ showed similar interfacial microstructures, with all of the interfaces showing intimate bonding between the zirconia and MaCor™, without any additional interfacial phases. Experiments indicate that joining requires higher nominal temperatures when carried out using conventional heating rather than microwave heating.