4 research outputs found
ΠΠΈΠΊΡΠΎΠ΄ΡΠ³ΠΎΠ²ΡΠ΅ Zn- ΠΈ Ag-ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠ΅ ΠΏΠΎΠΊΡΡΡΠΈΡ Π΄Π»Ρ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ² ΡΠΎ ΡΠ»ΠΎΠΆΠ½ΠΎΠΉ ΠΏΠΎΡΠΎΠ²ΠΎΠΉ Π°ΡΡ ΠΈΡΠ΅ΠΊΡΡΡΠΎΠΉ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ 3D-ΠΏΠ΅ΡΠ°ΡΠΈ ΠΈΠ· ΡΠΈΡΠ°Π½ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π°
Relevance. The creation of porous three-dimensional materials for bone defects compensation and its subsequent regeneration is an important direction of medical materials science. The key issue in the interaction of an implant and bone tissue is the surface properties of the implant.The purpose of the study is to evaluate the physicochemical properties and compatibility of tissues of a living organism and porous implants with calcium phosphate Zn- and Ag-containing formed by microarc oxidation.Materials and Methods. Implants with various types of porous structure were made by direct laser sintering of titanium alloy Ti-6Al-4V powders. The calcium phosphate coatings, including Zn- and Ag-containing, were formed on the implants surface by microarc oxidation.Results. Coatings, deposited in electrolytes of various compositions, were uniformly distributed over the implants mesh structure. The phase composition of Zn-containing coatings, deposited in the acidic electrolyte, was represented by amorphous calcium phosphates. Ag-containing coatings, deposited in the alkaline electrolyte, had an amorphous-crystalline structure, the crystalline phase of which was identified as tricalcium phosphate in the Ξ± and Ξ² modifications. The samples of extracts of calcium phosphate Zn and Ag-containing coatings were co-cultured with pFb line of the human postnatal fibroblasts for 48 hours at 37Β°C in 5% CO2 atmosphere. The MTT test revealed a high metabolic activity of the co-cultured fibroblasts in comparison with the fibroblasts of control.Conclusion. The pFb line of the human postnatal fibroblasts retained their viability for 48 hours of co-culturing with calcium-phosphate Zn- and Ag-containing coatings. The tested product and its components did not negatively affect the cellular respiration. However, further studies are needed to determine the rate of bioresorption and the degree of antibacterial activity of calcium-phosphate Zn- and Ag-containing coatings.ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. Π‘ΠΎΠ·Π΄Π°Π½ΠΈΠ΅ ΠΏΠΎΡΠΈΡΡΡΡ
ΡΡΠ΅Ρ
ΠΌΠ΅ΡΠ½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π΄Π»Ρ Π²ΠΎΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π΄Π΅ΡΠ΅ΠΊΡΠΎΠ² ΠΊΠΎΡΡΠΈ ΠΈ Π΅Π΅ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΡΠ΅ΠΉ ΡΠ΅Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ Π²Π°ΠΆΠ½ΡΠΌ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ. ΠΠΏΡΠ΅Π΄Π΅Π»ΡΡΡΠΈΠΌΠΈ ΡΠ²Π»ΡΡΡΡΡ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠ° ΠΏΡΠΈ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠΈ ΠΏΠΎΡΠ»Π΅Π΄Π½Π΅Π³ΠΎ Ρ ΠΊΠΎΡΡΠ½ΠΎΠΉ ΡΠΊΠ°Π½ΡΡ.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β ΠΎΡΠ΅Π½ΠΈΡΡ ΡΠΈΠ·ΠΈΠΊΠΎ-Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° ΠΈ ΡΠΎΠ²ΠΌΠ΅ΡΡΠΈΠΌΠΎΡΡΡ Ρ ΡΠΊΠ°Π½ΡΠΌΠΈ ΠΆΠΈΠ²ΠΎΠ³ΠΎ ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΌΠ° ΠΏΠΎΡΠΈΡΡΡΡ
ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ² ΡΠΎ ΡΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΌΠΈΠΊΡΠΎΠ΄ΡΠ³ΠΎΠ²ΠΎΠ³ΠΎ ΠΎΠΊΡΠΈΠ΄ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΊΠ°Π»ΡΡΠΈΠΉ-ΡΠΎΡΡΠ°ΡΠ½ΡΠΌΠΈ Zn- ΠΈ Ag-ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠΌΠΈ ΠΏΠΎΠΊΡΡΡΠΈΡΠΌΠΈ.ΠΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. ΠΠΌΠΏΠ»Π°Π½ΡΠ°ΡΡ Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌΠΈ ΡΠΈΠΏΠ°ΠΌΠΈ ΠΏΠΎΡΠΈΡΡΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ ΠΏΠΎΠ»ΡΡΠ°Π»ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΏΡΡΠΌΠΎΠ³ΠΎ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠ΅ΠΊΠ°Π½ΠΈΡ ΠΈΠ· ΠΏΠΎΡΠΎΡΠΊΠΎΠ² ΡΠΈΡΠ°Π½ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π° Ti-6Al-4V. ΠΠ° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ² Π±ΡΠ»ΠΈ ΡΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΌΠΈΠΊΡΠΎΠ΄ΡΠ³ΠΎΠ²ΠΎΠ³ΠΎ ΠΎΠΊΡΠΈΠ΄ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΊΠ°Π»ΡΡΠΈΠΉ-ΡΠΎΡΡΠ°ΡΠ½ΡΠ΅ ΠΏΠΎΠΊΡΡΡΠΈΡ, Π² ΡΠΎΠΌ ΡΠΈΡΠ»Π΅ Zn- ΠΈ Ag-ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠ΅.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠΎΠΊΡΡΡΠΈΡ, Π½Π°Π½Π΅ΡΠ΅Π½Π½ΡΠ΅ Π² ΡΠ»Π΅ΠΊΡΡΠΎΠ»ΠΈΡΠ°Ρ
ΡΠ°Π·Π½ΡΡ
ΡΠΎΡΡΠ°Π²ΠΎΠ², ΡΠ°Π²Π½ΠΎΠΌΠ΅ΡΠ½ΠΎ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Ρ ΠΏΠΎ ΡΠ΅ΡΡΠ°ΡΠΎΠΉ ΡΡΡΡΠΊΡΡΡΠ΅ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΎΠ². Π€Π°Π·ΠΎΠ²ΡΠΉ ΡΠΎΡΡΠ°Π² Zn-ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΏΠΎΠΊΡΡΡΠΈΠΉ, Π½Π°Π½Π΅ΡΠ΅Π½Π½ΡΡ
Π² ΠΊΠΈΡΠ»ΠΎΠΌ ΡΠ»Π΅ΠΊΡΡΠΎΠ»ΠΈΡΠ΅, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ Π°ΠΌΠΎΡΡΠ½ΡΠΌΠΈ ΡΠΎΡΡΠ°ΡΠ°ΠΌΠΈ ΠΊΠ°Π»ΡΡΠΈΡ. Ag-ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΠ΅ ΠΏΠΎΠΊΡΡΡΠΈΡ, Π½Π°Π½Π΅ΡΠ΅Π½Π½ΡΠ΅ Π² ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΌ ΡΠ»Π΅ΠΊΡΡΠΎΠ»ΠΈΡΠ΅, ΠΈΠΌΠ΅ΡΡ Π°ΠΌΠΎΡΡΠ½ΠΎ-ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΡΡ ΡΡΡΡΠΊΡΡΡΡ, Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ°Π·Ρ Π² Π½ΠΈΡ
ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΡΠΈΡΡΠ΅ΡΡΡ ΡΡΠΈΠΊΠ°Π»ΡΡΠΈΠΉΡΠΎΡΡΠ°Ρ Π² ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Ξ± ΠΈ Ξ². ΠΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌ ΠΠ’Π’-ΡΠ΅ΡΡΠ° Π±ΡΠ»Π° Π²ΡΡΠ²Π»Π΅Π½Π° Π²ΡΡΠΎΠΊΠ°Ρ ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠ°Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΠΎΡΡΠ½Π°ΡΠ°Π»ΡΠ½ΡΡ
ΡΠΈΠ±ΡΠΎΠ±Π»Π°ΡΡΠΎΠ² ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° Π»ΠΈΠ½ΠΈΠΈ pFb ΠΏΡΠΈ ΠΈΡ
ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎΠΌ ΠΊΡΠ»ΡΡΠΈΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ Ρ ΡΠΊΡΡΡΠ°ΠΊΡΠ°ΠΌΠΈ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΊΠ°Π»ΡΡΠΈΠΉ-ΡΠΎΡΡΠ°ΡΠ½ΡΡ
Zn- ΠΈ Ag-ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΏΠΎΠΊΡΡΡΠΈΠΉ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 48 Ρ. Π² ΡΡΠ»ΠΎΠ²ΠΈΡΡ
37ΒΊΠ‘, Π² 5% Π°ΡΠΌΠΎΡΡΠ΅ΡΠ΅ Π‘Π2, Π² ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΈ Ρ Π²Π΅Π»ΠΈΡΠΈΠ½ΠΎΠΉ ΠΌΠ΅ΡΠ°Π±ΠΎΠ»ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΏΠΎΡΡΠ½Π°ΡΠ°Π»ΡΠ½ΡΡ
ΡΠΈΠ±ΡΠΎΠ±Π»Π°ΡΡΠΎΠ² ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° ΠΈΠ½ΡΠ°ΠΊΡΠ½ΠΎΠΉ ΠΊΡΠ»ΡΡΡΡΡ.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. Π ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΊΠ°Π»ΡΡΠΈΠΉ-ΡΠΎΡΡΠ°ΡΠ½ΡΡ
Zn- ΠΈ Ag-ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΏΠΎΠΊΡΡΡΠΈΠΉ Π½Π° ΠΆΠΈΠ²ΡΠ΅ ΠΏΠΎΡΡΠ½Π°ΡΠ°Π»ΡΠ½ΡΠ΅ ΡΠΈΠ±ΡΠΎΠ±Π»Π°ΡΡΡ ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ° Π»ΠΈΠ½ΠΈΠΈ pFb Π²ΡΡΠ²ΠΈΠ»ΠΈ ΡΠΎΡ
ΡΠ°Π½Π΅Π½ΠΈΠ΅ ΠΆΠΈΠ·Π½Π΅ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΠΊΠ»Π΅ΡΠΎΠΊ ΠΊΡΠ»ΡΡΡΡΡ, ΡΡΠΎ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΠ΄Π΅Π»Π°ΡΡ Π·Π°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅ ΠΎ ΡΠΎΠΌ, ΡΡΠΎ ΠΈΠ·Π΄Π΅Π»ΠΈΠ΅ ΠΈ Π΅Π³ΠΎ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΡ Π½Π΅ Π²Π»ΠΈΡΠ»ΠΈ Π½Π΅Π³Π°ΡΠΈΠ²Π½ΠΎ Π½Π° ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Ρ ΠΊΠ»Π΅ΡΠΎΡΠ½ΠΎΠ³ΠΎ Π΄ΡΡ
Π°Π½ΠΈΡ, ΡΡΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ ΡΠΎΡ
ΡΠ°Π½Π½ΠΎΡΡΡ ΠΆΠΈΠ·Π½Π΅ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΠΊΠ»Π΅ΡΠΎΠΊ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 48 Ρ. ΠΠ΄Π½Π°ΠΊΠΎ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΡ Π΄Π°Π»ΡΠ½Π΅ΠΉΡΠΈΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π΄Π»Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠΈ Π±ΠΈΠΎΡΠ΅Π·ΠΎΡΠ±ΡΠΈΠΈ ΠΈ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΡΡΠΈ Π°Π½ΡΠΈΠ±Π°ΠΊΡΠ΅ΡΠΈΠ°Π»ΡΠ½ΡΡ
ΡΠ²ΠΎΠΉΡΡΠ² ΠΊΠ°Π»ΡΡΠΈΠΉ- ΡΠΎΡΡΠ°ΡΠ½ΡΡ
Zn- ΠΈ Ag-ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
ΠΏΠΎΠΊΡΡΡΠΈΠΉ
Assessment of welding working properties of power supplies
The welding working properties of power supplies are the basic indicators of efficiency of their application when forming permnanent joints of critical duty constructions. Growth of the share of welded structures made of difficult-to-weld steels and alloys requires more advanced welding equipment characterized by better static and dynamic characteristics and ensuring optimal thermal welding cycles. In the paper the authors present their own view of the necessity of power supplies welding working properties assessment from the perspective of quantitative assessment of welding conditions indicators. It allows most complete characterizing of the process flow parameters