Inkjet Printing Technology: A Novel Bottom-up Approach for Multilayer Ceramic Components and High Definition Printed Electronic Devices

2012 ◽  
Vol 9 (4) ◽  
pp. 187-198
Author(s):  
C. Dossou-Yovo ◽  
M. Mougenot ◽  
E. Beaudrouet ◽  
M. Bessaudou ◽  
N. Bernardin ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Good Precision ◽  
High Definition ◽  
Large Area ◽  
Droplet Spreading ◽  
Component Design ◽  
Ceramic Components ◽  
Multilayer Ceramic ◽  
Design Characteristics ◽  
Component Manufacturing

This paper describes the methodology of thick film and multilayer ceramic capacitor (MLCC) component manufacturing by inkjet printing. The printing unit is a CeraDrop 3D multimaterial inkjet printer. Aqueous conductive and dielectric inks were formulated according to the printhead specifications in terms of viscosity, surface tension, particle size, and sedimentation. Jetting behavior was controlled and optimized to reach the best droplet characteristics with regard to the design. The numerical processing simulation tool helps to control the printing job and to identify potential beneficial issues during the processing. Therefore, printing parameters (droplet spreading, layer thickness, filling strategy, layer drying, etc.) were optimized according to material and component design characteristics. In this way, high definition and thin conductive tracks were achieved on an alumina substrate with good electrical properties. Moreover, two printheads were used to successively build 3D multimaterial MLCC components with thin dielectric and conductive layers (i) with good precision of margins compared with traditional processes, and (ii) with very high complex configurations thanks to the flexibility of the inkjet printing process. For both applications, large area components were accessible in a single batch.

Inkjet Printing Technology: A Novel Bottom-up Approach For Multilayer Ceramic Components and High Definition Printed Electronic Devices

2012 ◽  
Vol 2012 (CICMT) ◽  
pp. 000055-000066 ◽  
Author(s):  
C. DOSSOU-YOVO ◽  
M. MOUGENOT ◽  
E. BEAUDROUET ◽  
M. BESSAUDOU ◽  
N. BERNARDIN ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
High Definition ◽  
Large Area ◽  
Droplet Spreading ◽  
Component Design ◽  
Ceramic Capacitor ◽  
Ceramic Components ◽  
Multilayer Ceramic ◽  
Design Characteristics ◽  
Printing Parameters

This paper describes the methodology of thick film and Multilayer Ceramic Capacitor (MLCC) components manufacturing by inkjet printing. The printing unit is a CERADROP 3D multimaterial inkjet printer. Aqueous conductive and dielectric inks were formulated according to the printheads specifications in terms of viscosity, surface tension, particles size and sedimentation. Jetting behavior was controlled and optimized to reach the best droplets characteristics with regard to the design. Numerical processing simulation tool helps to control the printing job and to identify beneficial potential issues during the processing. Therefore printing parameters (droplet spreading, layer thickness, filling strategy, layer drying, etc.) were optimized according to material and component design characteristics. By this way, high definition and thin conductive tracks were achieved on alumina substrate with good electrical properties. Moreover, two printheads were used to build successively 3D multimaterial MLCC components with thin dielectric and conductive layers (i) with a good margins precision compared to traditional processes and (ii) with very high complex configurations thanks to the flexibility of the inkjet printing process. For both applications, large area components were accessible in a single batch.

Large Area Inkjet Printing for Organic Photovoltaics and Organic Light Emitting Diodes Using Non-Halogenated Ink Formulations

2014 ◽  
Vol 58 (4) ◽  
pp. 404021-404026 ◽  
Author(s):  
T. M. Eggenhuisen ◽  
M. J. J. Coenen ◽  
M. W. L. Slaats ◽  
W. A. Groen
Keyword(s):  
Organic Photovoltaics ◽  
Inkjet Printing ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Large Area ◽  
Light Emitting ◽  
Organic Light

The XFM beamline at the Australian Synchrotron

2020 ◽  
Vol 27 (5) ◽  
pp. 1447-1458 ◽  
Author(s):  
Daryl L. Howard ◽  
Martin D. de Jonge ◽  
Nader Afshar ◽  
Chris G. Ryan ◽  
Robin Kirkham ◽  
...  
Keyword(s):  
Materials Science ◽  
Energy Detection ◽  
Array Detector ◽  
X Rays ◽  
X Ray Diffraction ◽  
High Definition ◽  
Large Area ◽  
X Ray ◽  
Diffraction Microscopy ◽  
System Time

The X-ray fluorescence microscopy (XFM) beamline is an in-vacuum undulator-based X-ray fluorescence (XRF) microprobe beamline at the 3 GeV Australian Synchrotron. The beamline delivers hard X-rays in the 4–27 keV energy range, permitting K emission to Cd and L and M emission for all other heavier elements. With a practical low-energy detection cut-off of approximately 1.5 keV, low-Z detection is constrained to Si, with Al detectable under favourable circumstances. The beamline has two scanning stations: a Kirkpatrick–Baez mirror microprobe, which produces a focal spot of 2 µm × 2 µm FWHM, and a large-area scanning `milliprobe', which has the beam size defined by slits. Energy-dispersive detector systems include the Maia 384, Vortex-EM and Vortex-ME3 for XRF measurement, and the EIGER2 X 1 Mpixel array detector for scanning X-ray diffraction microscopy measurements. The beamline uses event-mode data acquisition that eliminates detector system time overheads, and motion control overheads are significantly reduced through the application of an efficient raster scanning algorithm. The minimal overheads, in conjunction with short dwell times per pixel, have allowed XFM to establish techniques such as full spectroscopic XANES fluorescence imaging, XRF tomography, fly scanning ptychography and high-definition XRF imaging over large areas. XFM provides diverse analysis capabilities in the fields of medicine, biology, geology, materials science and cultural heritage. This paper discusses the beamline status, scientific showcases and future upgrades.

scholarly journals 300 kW Class Ceramic Gas Turbine Development (CGT 301)

1994 ◽  
Author(s):  
Masaru Sakakida ◽  
Tadashi Sasa ◽  
Kazuho Akiyama ◽  
Shinya Tanaka
Keyword(s):  
Gas Turbine ◽  
Axial Flow ◽  
Second Phase ◽  
Test Results ◽  
Ceramic Component ◽  
Component Design ◽  
All Ceramic ◽  
Ceramic Components ◽  
Primary Type ◽  
Metallic Parts

CGT 301 is a recuperated, single-shaft, ceramic gas turbine for cogeneration capable of continuous full load application. In order to reduce its size, thermal stress, and deformations, ceramic parts are designed axi-symmetrically. The combustor is located on a shaft axis just before the turbine, therefore it does not have a large scroll. The turbine is a two-stage axial flow-type with ceramic blades. For the first phase of the program, the primary-type gas turbine with all-metallic parts was fabricated and tested under various conditions. The test results confirmed the rotation stability of the gas turbine. After the test of preliminary metallic gas turbine, all-ceramic parts were fabricated and various tests were carried out to confirm their reliability. The configuration and structure of the ceramic turbine were improved based on the data obtained from the tests of the primary-type gas turbine and the fundamental tests for ceramic components. The primary-type ceramic gas turbine of TIT 1200°C was designed and fabricated for the second phase of the program. This paper outlines the concept of the ceramic component design, test results of ceramic parts in the hot section, and the engine test.

A Design Review of Ceramic Components for Turbine Engines

1980 ◽  
Vol 102 (2) ◽  
pp. 437-447
Author(s):  
P. J. Coty ◽  
A. D. Lane ◽  
J. B. Lee ◽  
L. J. Meyer
Keyword(s):  
High Performance ◽  
Thermal Stresses ◽  
Ceramic Materials ◽  
Rotor Blades ◽  
Turbine Engines ◽  
Design Concepts ◽  
Component Design ◽  
Path Analyses ◽  
Limited Life ◽  
Ceramic Components

This paper summarizes a program (AFML/APL Contract No. F33615-77-C-5171) to evaluate the application of ceramic materials in small, limited-life turbine engines. Advanced ceramics technology is employed in the program to achieve an affordable, reliable, high-performance capability for turbine engines in a missile application. The paper presents design and material considerations for ceramic rotor blades and stator vanes in addition to aerodynamic flow path analyses for ceramic components in high temperature environments. An iterative materials/design analysis was made with use of probabilistic design methods to predict the survivability of the ceramic components. Materials for both rotor blades and stator vanes were evaluated and selected based on mechanical and thermal stresses imposed by the optimum component design. A number of design concepts for the primary components are reviewed. These concepts include segmented-vane configurations and rotor airfoil shape and attachment schemes.

Nanosphere-Aggregation-Induced Reflection and Its Application in Large-Area and High-Precision Panchromatic Inkjet Printing

2020 ◽  
Vol 12 (9) ◽  
pp. 10867-10874 ◽  
Author(s):  
Yue Wu ◽  
Jie Ren ◽  
Shufen Zhang ◽  
Suli Wu
Keyword(s):  
High Precision ◽  
Inkjet Printing ◽  
Large Area

Organic/Inorganic Hybrid Thin-Film Encapsulation Using Inkjet Printing and PEALD for Industrial Large-Area Process Suitability and Flexible OLED Application

2021 ◽  
Author(s):  
Byoung-Hwa Kwon ◽  
Chul Woong Joo ◽  
Hyunsu Cho ◽  
Chan-mo Kang ◽  
Jong-Heon Yang ◽  
...  
Keyword(s):  
Thin Film ◽  
Inkjet Printing ◽  
Large Area ◽  
Hybrid Thin Film ◽  
Inorganic Hybrid ◽  
Thin Film Encapsulation

Performance Evaluation of Brick Chips as Coarse Aggregate on the Properties of Bituminous Mixes

2015 ◽  
Vol 2 (2) ◽  
Author(s):  
H. M. Rasel ◽  
M. A. Sobhan ◽  
M. N. Rahman
Keyword(s):  
Coarse Aggregate ◽  
Test Procedure ◽  
Road Construction ◽  
Strength Properties ◽  
Fine Aggregate ◽  
Large Area ◽  
Alternative Materials ◽  
Alternative Material ◽  
Feasible Option ◽  
Design Characteristics

In Bangladesh there is large area where stone aggregates are not available in the vicinity of road construction. Due to excessive cost on transportation of stone aggregates, road construction becomes expensive. This leads to search of alternative materials for road construction in place of stone aggregate. The locally available over burnt brick-bats are the best alternative material against stone aggregates in bituminous mixes. The demand of natural stone aggregates can be reduced by fresh brick and waste brick from brick-kiln and demolished building respectively. But a very fewresearches have been carried out toinvestigate their suitability and limited information's isavailable about their performances. Thus, this paper describes the technical feasibility on application of the brick aggregates in road construction as an alternative against natural aggregate. An experimental investigation is carried out to evaluate the possible application of fresh brick and waste brick as coarse aggregate in bituminous concrete pavement design and to find out its design characteristics. The research program concentrated on the existing practices relating to use of bricks in road construction, use of crushed bricks in substitution of whole bricks and replacement of stone aggregate with crushed brick wherever economically feasible. The strength properties of coarse aggregate, fine aggregate and Marshall Design properties of bituminous mixes were performed according to the test procedure specified by AASHTO. Dense bituminous mixes using compacted brick aggregate with 50 blows is found a feasible option from the standpoint of stability, stiffness, deformations and voids characteristics.

Design of Ceramic Components for an Advanced Micro-Turbine Engine

2004 ◽  
Author(s):  
Bill Tredway ◽  
Jun Shi ◽  
John Holowczak ◽  
Venkata Vedula ◽  
Connie E. Bird ◽  
...  
Keyword(s):  
Thermal Stresses ◽  
Ceramic Materials ◽  
Turbine Rotor ◽  
Component Reliability ◽  
Turbine Engine ◽  
Component Design ◽  
Temperature Capability ◽  
Ceramic Components ◽  
Micro Turbine ◽  
Engine Components

Ceramic components, due to their high temperature capability, allow significantly higher turbine inlet temperatures with minimal cooling. Hot-section engine components, including combustor, integral vane ring, integrally bladed turbine rotor, and turbine tip shroud were designed for an advanced micro-turbine engine, with special attention to attachment methods that minimize thermal stresses due to large differences between coefficients of thermal expansion between metallic and ceramic materials. Detailed aerodynamic, thermal and stress analyses were performed. Both steady state and transient conditions were evaluated to guide design decisions that lead to optimal component reliability and manufacturability. This paper describes the component design, analysis, and fabrication experiences with silicon based monolithic ceramic materials.

Metal oxides as functional semiconductors. An inkjet approach

2013 ◽  
Vol 1552 ◽  
pp. 45-50
Author(s):  
Anna Vilà ◽  
Alberto Gomez ◽  
Luis Portilla ◽  
Marti Cirici ◽  
Juan Ramon Morante
Keyword(s):  
Flexible Electronics ◽  
Inkjet Printing ◽  
Sol Gel ◽  
Cost Effective ◽  
Thin Layers ◽  
Thermal Treatments ◽  
Direct Writing ◽  
Large Area ◽  
Cost Effective Technique

ABSTRACTInkjet printing provides an interesting technology for electronic devices, as it is a versatile minimum-waste cost-effective technique for direct writing on almost every surface without need of masks or sacrificial layers. Among the fields in which it has been tested, transparent and flexible electronics offer a variety of applications ranging from large-area roll-toroll (such as OLEDs for lighting or solar cells) to small low-consumption biocompatible devices such as biosensors.This work aims to present some advances in the field of semiconductors synthesized by sol-gel and patterned by inkjet printing. Chemical routes are used to obtain suitable inks, based on salts of Ga, In, Zn, Cu and Sn and solvents as methoxyethanol. Inkjet printing provides thin layers 20-300nm thick, with morphology strongly depending on the materials. Different thermal treatments are tested, and some chemical and optical characterization of the obtained layers allows optimizing the technology for each material.The effectiveness of the inks and the technique is demonstrated by the electronic behavior of thin-film transistors fabricated by the proposed technology. The different devices are compared, suggesting the properties of the different materials analyzed, as a step ahead in the development of a complete logic for such promising applications of the flexible electronics.

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