English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

In laser beam machining of ceramics, crack formation is a serious problem for practical application. In the present paper, Q-switched YAG laser machining of zirconia ceramics was carried out. The formation occurrence and length of cracks are dealt with ; furthermore, blackening of surrounding material of machined portion is observed. Cracks are formed within the blackened region. The blackening disappears when the machined workpiece is heated up to about 700°C. The blackening is due to the reduction in oxygen content ; the disappearance of blackening can be caused by oxygen diffusion into the material.

Blackening and crack formation in Q-switched YAG laser machining of zirconia ceramics.