A nonlocal algorithm for analyzing the data of monochromatic optical control in the process of multilayer coating deposition

Предложен новый алгоритм определения значений экстремумов измеряемой в процессе напыления многослойного покрытия зависимости значения коэффициента отражения от оптической толщины напыляемого слоя. Алгоритм использует физическую модель процесса напыления, что позволяет использовать все данные измерений, накопленные регистрирующим прибором во время напыления слоя, в отличие от классических подходов, которые хорошо описывают зависимость коэффициента отражения только вблизи ее экстремума. Эффективность предложенного подхода продемонстрирована на примере моделирования процесса напыления 20слойного четвертьволнового зеркала. A new algorithm for determining the extrema in the dependence of the reflection coefficient on the optical thickness of the deposited layer is proposed. This reflection coefficient is measured during the deposition process of a multilayer coating. The proposed algorithm uses a physical model of the deposition process, which makes it possible to use all the measurement data accumulated by a recording device during the deposition of the layer in contrast to the classical approaches that adequately describe the dependence of the reflection coefficient only near its extremum. The efficiency of the proposed approach is shown by an example of modeling the deposition process for a 20-layer quarter-wave mirror.

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Concept of CAE-system for designing of protective coating deposition process for hardening and reconditioning of manufacturing equipment components

REPAIR RECONDITIONING MODERNIZATION ◽

10.31044/1684-2561-2019-0-12-4-10 ◽

2019 ◽

pp. 4-10

Author(s):

I. N. Kravchenko ◽

◽

M. N. Erofeyev ◽

S. V. Kartsev ◽

V. V. Spirjagin ◽

...

Keyword(s):

Protective Coating ◽

Deposition Process ◽

Manufacturing Equipment ◽

Coating Deposition ◽

Cae System

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Influence of the microstructure of tool coatings based on Ti and Al on the blunting process during chipboard processing

Annals of WULS, Forestry and Wood Technology ◽

10.5604/01.3001.0014.7356 ◽

2020 ◽

Vol 112 ◽

pp. 54-59

Author(s):

Paweł Czarniak ◽

Karol Szymanowski ◽

Peter Panjan

Keyword(s):

Multilayer Coating ◽

Cutting Tools ◽

Rf Magnetron Sputtering ◽

Deposition Process ◽

Cnc Milling ◽

Tool Coatings ◽

Long Time ◽

Machine Industry ◽

Altin Coating ◽

Clearance Face

Influence of the microstructure of tool coatings based on Ti and Al on the blunting process during chipboard processing.This work concerns three different tool coatings containing Ti and Al. i.e. TiN, AlTiN, TiAlSiN applied to cutting tools used in the machining of wood materials. In the case of the AlTiN coating, a multilayer structure with alternately arranged AlTiN and TiN nano-layers was used. The above coatings were applied to standard replaceable knives used for CNC milling heads made of WC-Co cemented carbide. The deposition process was carried out using the RF Magnetron Sputtering method. During the measurement on a workshop microscope, the VBmax index measured on the clearance face was adopted as the wear criterion. The research proved a very good behaviour of the TiN/AlTiN multilayer coating, for which the longest average service life which was recorded exceeded the results obtained for the reference tool by about 30%. The addition of silicon, which was supposed to increase the abrasion resistance, only did not improve the durability of the blade, it actually worsened it by 6%. In addition, the coating, which has been widely used in the machine industry for a very long time, i.e. TiN, did not extend the tool life significantly (+ 7%).

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Characteristics of TiO2/ZnO bilayer film towards pH sensitivity prepared by different spin coating deposition process

10.1063/1.4948877 ◽

2016 ◽

Author(s):

Rohanieza Abdul Rahman ◽

Muhammad Al Hadi Zulkefle ◽

Wan Fazlida Hanim Abdullah ◽

M. Rusop ◽

Sukreen Hana Herman

Keyword(s):

Spin Coating ◽

Deposition Process ◽

Ph Sensitivity ◽

Bilayer Film ◽

Coating Deposition

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PORT RESONANCE MITIGATION MODELED INTRODUCING ARJ-R STRUCTURES

Coastal Engineering Proceedings ◽

10.9753/icce.v36v.structures.38 ◽

2020 ◽

pp. 38

Author(s):

Jose A. GONZALEZ-ESCRIVA ◽

Josep R. MEDINA ◽

Joaquin M. GARRIDO

Keyword(s):

Reflection Coefficient ◽

Physical Model ◽

Large Scale ◽

Low Frequency ◽

Model Tests ◽

Wave Interference ◽

Low Frequency Oscillations ◽

Physical Model Tests ◽

Similar Cost ◽

Interference Mechanism

ARJ-R caissons are based on the "long-circuit" concept (Medina et al, 2016) that allows the extension of the destructive wave interference mechanism to mitigate low frequency oscillations without enlarging the width of the caisson. The performance of the ARJ-R caissons is referred to its reflection coefficient (Cr) which was obtained through large-scale physical model tests (Gonzalez-Escriva et al, 2018). In this paper, the effectiveness of Anti-Reflective Jarlan-type structures for Port Resonance mitigation (ARJ-R) has been assessed numerically for the port of Denia (Spain). ARJ-R structures are constructible, with similar dimensions as conventional vertical quay caissons and with a similar cost (15percent more than conventional vertical caisson).Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/LomQEVpvjik

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Wavelet Analysis of PK2600 Measurement Data on Core-Rod

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.571.551 ◽

2012 ◽

Vol 571 ◽

pp. 551-554 ◽

Cited By ~ 1

Author(s):

Hong Sheng Li ◽

Zhen Yu Li

Keyword(s):

Vapor Deposition ◽

Measurement Data ◽

Chemical Vapor ◽

Deposition Process ◽

Refractive Index Profile ◽

Index Profile ◽

Plasma Chemical ◽

Plasma Chemical Vapor Deposition ◽

The Core ◽

Core Rod

The Core Rod made by Plasma Chemical Vapor Deposition process is measured by PK2600 for Refractive Index Profile. The measurement data is very important to justify the core rod quality. A method based on DWT is presented in this paper to discover some information which is difficult to emerge according to conventional way. The analysis result can be used to optimize the core-rod making process.

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