Blackening and its disappearance of stabilized zirconia ceramics in pulsed Nd:YAG laser drilling

1995 ◽  
Author(s):  
Shunro Yoshioka ◽  
Toshiyuki Miyazaki ◽  
Tsuyoshi Tokunaga ◽  
Yoshihiro Tanaka
Keyword(s):  
Nd:Yag Laser ◽  
Laser Drilling ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Pulsed Nd:Yag Laser

scholarly journals Employment of Some Parameters to Enhance Laser-Drilling of Aluminum

2005 ◽  
Vol 10 ◽  
pp. 93
Author(s):  
Oday A. Hamadi
Keyword(s):  
Electric Field ◽  
Nd:Yag Laser ◽  
Laser Energy ◽  
Low Pressure ◽  
Laser Drilling ◽  
Sample Temperature ◽  
Drilling Process ◽  
Pulsed Nd:Yag Laser ◽  
Hole Depth

In this work, some parameters affecting drilling of aluminum samples by a pulsed Nd:YAG laser were studied. These parameters are multi-pulses irradiation, controlling sample temperature, low-pressure ambient and application of electric field on the sample. Results presented in this work explained that these parameters can enhance drilling process throughout increasing hole depth in aluminum samples at the same laser energy used for irradiation. 

Nitriding of Zirconia by Irradiation with NdrYAG Laser Beam

1995 ◽  
Vol 397 ◽  
Author(s):  
S. Fujitsu ◽  
M. Sawai ◽  
K. Kawamura ◽  
H. Hosono
Keyword(s):  
Laser Beam ◽  
Mass Spectroscopy ◽  
Nd:Yag Laser ◽  
Zirconium Nitride ◽  
X Ray Diffraction ◽  
Stabilized Zirconia ◽  
Zirconia Ceramics ◽  
Partially Stabilized Zirconia ◽  
X Ray ◽  
Secondary Ion

ABSTRACTThe surface of partially stabilized zirconia ceramics was irradiated by a Nd:YAG laser in various atmospheres. Zirconia strongly absorbed YAG's laser beam and changed its chemistry and microstructure. The change of color of zirconia into gold was due to the formation of zirconium nitride (ZrN) observed on the irradiated surface in air, nitrogen or ammonia, which was confirmed by X-ray diffraction and secondary ion mass spectroscopy. The observed ZrN phase was 10-20 um in thickness at the irradiated area by the direct beam. The adhesion between formed ZrN and YSZ substrate was very weak.

Hot cracking in autogenous welding of 6061-T6 aluminum alloy by rectangular pulsed Nd:YAG laser beam

2020 ◽  
Vol 64 (6) ◽  
pp. 1077-1088
Author(s):  
Hossain Ebrahimzadeh ◽  
Hassan Farhangi ◽  
Seyed Ali Asghar Akbari Mousavi
Keyword(s):  
Aluminum Alloy ◽  
Laser Beam ◽  
Nd:Yag Laser ◽  
Hot Cracking ◽  
Pulsed Nd:Yag Laser
Sign in / Sign up

Export Citation Format

Share Document