Preparation and characterization of vacuum deposited semiconducting nanocrystalline polymeric thin film sensors for detection of HCl

Polymer ◽  
2004 ◽  
Vol 45 (25) ◽  
pp. 8623-8628 ◽  
Author(s):  
S.C.K. Misra ◽  
Prafull Mathur ◽  
Maneesha Yadav ◽  
M.K. Tiwari ◽  
S.C. Garg ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Sensors ◽  
Polymeric Thin Film

Embedding of Micro Thin Film Sensors Into Polycrystaline Cubic Boron Nitride (PCBN) for Potential Tooling Applications Via Diffusion Bonding

2008 ◽  
Author(s):  
Dirk Werschmoeller ◽  
Xiaochun Li
Keyword(s):  
Thin Film ◽  
Boron Nitride ◽  
Diffusion Bonding ◽  
Cubic Boron Nitride ◽  
Embedded Sensors ◽  
Thin Film Sensors ◽  
Increase Tool Life ◽  
Pcbn Tools ◽  
Microfabrication Techniques

Polycrystalline cubic boron nitride (PCBN) is increasingly being used in manufacturing processes to increase tool life and processing speed. Existing sensors in PCBN tools are unable to provide accurate time- and space-resolved measurements of the thermo-mechanical phenomena at and near the tool-work interface. Using microfabrication techniques along with diffusion bonding, thin film palladium-13wt% chromium (PdCr) alloy micro strain gage sensors were successfully embedded into PCBN structures for potential tooling applications. This article reports on the design, fabrication and characterization of a sensor consisting of three PdCr sensing elements embedded into a PCBN sample. The embedded sensors show good linearity and sensitivity.

Embedding and characterization of fiber‐optic and thin‐film sensors in metallic structures

Sensor Review ◽  
2004 ◽  
Vol 24 (4) ◽  
pp. 370-377 ◽  
Author(s):  
Xiaochun Li ◽  
Wenliang Tang ◽  
Anastasios Golnas
Keyword(s):  
Thin Film ◽  
Fiber Optic ◽  
Metallic Structures ◽  
Thin Film Sensors

Fabrication and characterization of PZT-silane nano-composite thin-film sensors

2016 ◽  
Vol 246 ◽  
pp. 102-113 ◽  
Author(s):  
Weiwei Xu ◽  
Hsien-Lin Huang ◽  
Yifeng Liu ◽  
Chuan Luo ◽  
G.Z. Cao ◽  
...  
Keyword(s):  
Thin Film ◽  
Composite Thin Film ◽  
Nano Composite ◽  
Thin Film Sensors ◽  
Fabrication And Characterization

scholarly journals Photonic Crystal Polymeric Thin-Film Dye-Lasers for Attachable Strain Sensors

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5331
Author(s):  
Tsan-Wen Lu ◽  
Yu-Kai Feng ◽  
Huan-Yeuh Chu ◽  
Po-Tsung Lee
Keyword(s):  
Thin Film ◽  
Strain Sensors ◽  
Dye Lasers ◽  
Strain Sensing ◽  
One Dimensional ◽  
Scale Thickness ◽  
Polymeric Thin Film ◽  
Wavelength Scale ◽  
Polymeric Dye

In this report, using two-dimensional photonic crystals (PhC) and a one-dimensional PhC nano-beam cavity, we realized the development of all-polymeric dye-lasers on a dye-doped, suspended poly-methylmethacrylate film with a wavelength-scale thickness. In addition to the characterization of basic lasing properties, we also evaluated its capacity to serve as an attachable strain sensor. Through experimentation, we confirmed the stable lasing performances of the dye-laser attaching on a rough surface. Moreover, we also theoretically studied the wavelength responses of the utilized PhC resonators to stretching strain and further improved them via the concept of strain shaping. The attachability and high strain sensing response of the presented thin film PhC dye-lasers demonstrate their potential as attachable strain sensors.

Demonstration and characterization of PZT thin-film sensors and actuators for meso- and micro-structures

2004 ◽  
Vol 116 (3) ◽  
pp. 369-377 ◽  
Author(s):  
Yi-Chu Hsu ◽  
Chia-Che Wu ◽  
Cheng-Chun Lee ◽  
G.Z. Cao ◽  
I.Y. Shen
Keyword(s):  
Thin Film ◽  
Sensors And Actuators ◽  
Thin Film Sensors ◽  
Pzt Thin Film ◽  
Micro Structures

Characterization of Y-Ba-Cu-O films grown on silicon substrates by sequential evaporation

1988 ◽  
Vol 46 ◽  
pp. 866-867
Author(s):  
E. L. Hall ◽  
A. Mogro-Campero ◽  
L. G. Turner ◽  
N. Lewis
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Superconducting Films ◽  
Electron Beam Evaporation ◽  
Film Deposition ◽  
Silicon Substrates ◽  
Superconducting Properties ◽  
Sequential Electron ◽  
Thin Superconducting Films

There is great interest in the growth of thin superconducting films of YBa2Cu3Ox on silicon, since this is a necessary first step in the use of this superconductor in a variety of possible electronic applications including interconnects and hybrid semiconductor/superconductor devices. However, initial experiments in this area showed that drastic interdiffusion of Si into the superconductor occurred during annealing if the Y-Ba-Cu-O was deposited direcdy on Si or SiO2, and this interdiffusion destroyed the superconducting properties. This paper describes the results of the use of a zirconia buffer layer as a diffusion barrier in the growth of thin YBa2Cu3Ox films on Si. A more complete description of the growth and characterization of these films will be published elsewhere.Thin film deposition was carried out by sequential electron beam evaporation in vacuum onto clean or oxidized single crystal Si wafers. The first layer evaporated was 0.4 μm of zirconia.

Microstructural and fractographic characterization of B4C-Al cermets tested under dynamic and static loading

1989 ◽  
Vol 47 ◽  
pp. 562-563
Author(s):  
Gyeung Ho Kim ◽  
Mehmet Sarikaya ◽  
D. L. Milius ◽  
I. A. Aksay
Keyword(s):  
Thin Film ◽  
Mechanical Properties ◽  
Fracture Toughness ◽  
Static Loading ◽  
Carbon Deposition ◽  
Full Density ◽  
Unique Combination ◽  
Strong Component ◽  
Reaction Products

Cermets are designed to optimize the mechanical properties of ceramics (hard and strong component) and metals (ductile and tough component) into one system. However, the processing of such systems is a problem in obtaining fully dense composite without deleterious reaction products. In the lightweight (2.65 g/cc) B4C-Al cermet, many of the processing problems have been circumvented. It is now possible to process fully dense B4C-Al cermet with tailored microstructures and achieve unique combination of mechanical properties (fracture strength of over 600 MPa and fracture toughness of 12 MPa-m1/2). In this paper, microstructure and fractography of B4C-Al cermets, tested under dynamic and static loading conditions, are described.The cermet is prepared by infiltration of Al at 1150°C into partially sintered B4C compact under vacuum to full density. Fracture surface replicas were prepared by using cellulose acetate and thin-film carbon deposition. Samples were observed with a Philips 3000 at 100 kV.

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