Prokopenko A. High-strength silicon nitride brazed joints forming by the adhesion-active fillers of copper-gallium-titanium system.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0402U003166

Thesis Registration Form

0402U003166.pdf

Applicant for

Specialization

  • 05.02.01 - Матеріалознавство

21-10-2002

Specialized Academic Board

Д 26.207.03

Institute for Problems in Materials Science

Essay

The object is brazing process and brazed joints of silicon nitride ceramic. The aim is to discovered the influencing factors and to obtained the high-strength joints. The methods are wetting by sessile drop method, bending strength testing, Weibulls statistical analysis, electron-probe microanalysis. The novelty is: the Cu-Ga-Ti filler for brazing of Si3N4 has been used; the influence of Ga on the transition layers forming has been found; the nature of filler thickness strengthening effect has been analysed; the annealing influense on strength data has been established. The results are: high-strength silicon nitride ceramic brazed joints has been obtained; the technology of conductors brazing to the heater based on Si3N4 has been developed and used by SPE "Gradient". The field is mashine-building and electrotechnical.

Read more

Files

Автореферат.doc

Дисертація.doc

СканСтор016Авт.tif

СканСтор088.tif

СканСтор090.tif

СканСтор092.tif

СканСтор133.tif

СканСтор134.tif

СканСтор182.tif

СканСтор183.tif

СканСтор184.tif

СканСтор185.tif

ТитулЛистАвт.doc

Similar theses

0523U100235

Yulisa G. Chabak

Development of the scientific basis of enhancing the operational properties of alloyed cast irons by improving the chemical composition and applying highly concentrated energy sources for surface treatment. – Qualifying work as а scientific report

0423U100094

Romanenko Yaroslav M

Formation under high pressure of tool PCBN composites with homogeneous structure and increased damping capacity

0523U100002

Trostianchyn Andrii

The concept of hydrogen treatment to improve the structural-phase state and properties of functional materials based on alloys of rare earth and transition metals

0421U103868

Voloshyna Liudmyla V.

Higher wear resistance of an oil gear pump for tractor diesel engines

0521U102025

Rybalko Ivan M.

Experimental, theoretical and technological basics of hardening products with the use of modifying agents