Zobrazeno 1 - 10
of 37
pro vyhledávání: '"David JECH"'
Publikováno v:
Medžiagotyra, Vol 24, Iss 1, Pp 29-34 (2018)
One of the directions intensively investigated in the field of milling is high-energy milling (HEM). One type of HEM is high-speed grinding in high-speed disintegrators. This type of mill is particularly suitable for the grinding and activation of fi
Externí odkaz:
https://doaj.org/article/6060561e75544e9d8b9fc909539c4e21
Publikováno v:
Advances in Materials Science and Engineering, Vol 2018 (2018)
This study investigates the strain-controlled low-cycle fatigue (LCF) behaviour of an untreated and surface-treated MAR-M247 superalloy in a symmetrical push-pull cycle with a constant strain rate at 900°C in laboratory air. A newly developed experi
Externí odkaz:
https://doaj.org/article/664b30e82a1047fba3de68462119ece0
Publikováno v:
Journal of Thermal Spray Technology. 30:285-303
Despite the existence of several methods for production of superhydrophobic coatings from various materials, their application in harsh environments is still a great challenge. In this work, WC-Co-Cr cermet coatings were prepared by means of high vel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30ed779615a32180c2be76dcdb51da58
https://doi.org/10.1007/s11666-020-01130-6
https://doi.org/10.1007/s11666-020-01130-6
Publikováno v:
Materiali in tehnologije. 54:873-877
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::061f0bb08d3bf84239bd690ab857ecd9
https://doi.org/10.17222/mit.2019.181
https://doi.org/10.17222/mit.2019.181
Publikováno v:
Defect and Diffusion Forum. 405:423-429
According to the value of water contact angle (WCA), the surfaces can be roughly defined as hydrophilic (with WCA less than 90°) or as hydrophobic (with WCA higher than 90°). Water wetting behavior plays important role and surfaces with special wet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::827bb90e9717a2f004769faea49aecc5
https://doi.org/10.4028/www.scientific.net/ddf.405.423
https://doi.org/10.4028/www.scientific.net/ddf.405.423
Autor:
David Jech, Ladislav Čelko, Michal Páleníček, Ivana Ročňáková, Michaela Remešová, Martin Papula
Publikováno v:
Defect and Diffusion Forum. 405:440-444
Anodizing is an electrochemical process to produced anodic coatings for improving magnesium (Mg) properties such as corrosion-resistant. In this study, anodizing of pure magnesium in 1 M NaOH electrolyte for 1800 s and at 21 °C and different constan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e43a120d693f61d19fb752bb57cc906
https://doi.org/10.4028/www.scientific.net/ddf.405.440
https://doi.org/10.4028/www.scientific.net/ddf.405.440
Autor:
Ladislav Čelko, Karel Dvořák, Karel Slámečka, Simona Ravaszová, Pavel Komarov, Michaela Remešová, Lucie Dyčková, David Jech
Publikováno v:
Defect and Diffusion Forum. 405:417-422
Nowadays commonly used thermal barrier coatings (TBC) are based on yttria stabilized zirconia (YSZ). Addition of mullite phase into the YSZ coating can improve resulting high temperature properties. The contribution focuses on high temperature cyclic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e85d779166e085bdd7cf3263aaedc7fb
https://doi.org/10.4028/www.scientific.net/ddf.405.417
https://doi.org/10.4028/www.scientific.net/ddf.405.417
Autor:
Ladislav Čelko, Michaela Remešová, Daniel Holemý, Lucie Dyčková, Pavel Komarov, David Jech, Ivana Ročňáková, Zina Pavloušková
Publikováno v:
Defect and Diffusion Forum. 405:365-369
The high-speed grinding wheel can be defined as a self-sharpening composite structural tool composed from abrasive grains held in a specific binder. The main properties of grinding wheels depend on the type of abrasive elements, grit size, grade, bin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb7c4c47017e4f86747ec0294fd02d20
https://doi.org/10.4028/www.scientific.net/ddf.405.365
https://doi.org/10.4028/www.scientific.net/ddf.405.365
Publikováno v:
Defect and Diffusion Forum. 405:139-144
The composition of each grinding wheel depends on the specific application, and nowadays, there are many types of grinding wheels on the market. Bakelite bonded grinding wheels are fast becoming the standard choice for grinding and finishing processe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6baf9700853ef06a30f6f9aebf340c8
https://doi.org/10.4028/www.scientific.net/ddf.405.139
https://doi.org/10.4028/www.scientific.net/ddf.405.139
Autor:
Lenka Klakurková, Petr Skalka, David Jech, Daniel Holemý, Karel Slámečka, Jiří Švejcar, Jozef Kaiser, Ladislav Čelko, Ivana Ročňáková
Publikováno v:
Defect and Diffusion Forum. 405:43-47
In order to increase the peripheral speed of grinding wheels of size of Ø 500 × 18 × Ø 200 mm for precise hard metallic surface finishing from conventional 80 m.s-1 up to 138 m.s-1 while still ensuring their safety and reliability, the critical l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ce39cca51d3ef7b5a3c521dfa0cbcb6
https://doi.org/10.4028/www.scientific.net/ddf.405.43
https://doi.org/10.4028/www.scientific.net/ddf.405.43