scholarly journals Molecular layer deposited alucone thin films from long-chain organic precursors: from brittle to ductile mechanical characteristics

2020 ◽  
Vol 49 (31) ◽  
pp. 10832-10838
Author(s):  
Janne-Petteri Niemelä ◽  
Nadia Rohbeck ◽  
Johann Michler ◽  
Ivo Utke
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Molecular Layer ◽  
Organic Films ◽  
Organic Precursor ◽  
Organic Precursors ◽  
Long Chain

We tailor mechanical properties of molecular-layer-deposited inorganic–organic films through control over the organic precursor length, relevant for battery applications.

scholarly journals The study of the mechanical properties of thin films using piezoceramic acoustic resonators

2019 ◽  
Vol 30 ◽  
pp. 07002 ◽  
Author(s):  
Andrey Teplykh ◽  
Boris Zaitsev ◽  
Irina Borodina ◽  
Alexander Semyonov ◽  
Mayya Ziangirova ◽  
...  
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Elastic Constants ◽  
Acoustic Resonator ◽  
Organic Films ◽  
Hericium Erinaceus ◽  
Acoustic Resonators

The paper describes a method for determining the properties of thin films: elastic constants, viscosity and density. The method is based on the analysis of changing the characteristics of the acoustic resonator, on the surface of which the film under study is deposited, in comparison with a free resonator. Using the described method, the properties of two organic films based on the mycelium of basidiomycete Hericium erinaceus (Bull.) Persoon were determined.

Research on some Key Mechanical Properties of Silicon Nitride Thin Films Deposited by PECVD

2015 ◽  
Vol 742 ◽  
pp. 773-777
Author(s):  
Qun Feng Yang ◽  
Jian Yi Zheng ◽  
Jun Qing Wang ◽  
Jun Hui Lin ◽  
Xue Nan Zhao ◽  
...  
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Residual Stress ◽  
Silicon Nitride ◽  
Mechanical Characteristics ◽  
Dielectric Films ◽  
Rotating Beam ◽  
Atomic Force ◽  
Scanning Electron

The purpose of this work is to study the mechanical characteristics of the silicon nitride(SiNx) thin films prepared by PECVD technique, some researches as follows were carried out. First, the SiNx thin films were deposited on the two different substrates. Then, the atomic force microscope (AFM) was adopted to test the surface quality of the SiNxfilms, and the scanning electron microscope (SEM) was used to test the section morphology of the SiNxthin films. Finally, the rotating beam structures was applied to measure the residual stress in the SiNx films. The SiNxthin films with low stress can be fabricated through PECVD, in which the surface roughness values(Ra) are 1.261 nm and 2.383nm, and the residual stress is 43.5 kPa. Therefore, the SiNxthin films deposited by PECVD are suitable for the preparation of device dielectric films in MEMS.

The Preparation of Cf/ SiC-ZrC Composite Material by Adding SiC and ZrC Powders in Organic Precursors

2018 ◽  
Vol 281 ◽  
pp. 432-437
Author(s):  
Lu Ping Yang ◽  
Yang Wang ◽  
Kai Jiang ◽  
Fang Hong Yang ◽  
Yan Yan Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Electron Microscope ◽  
Mass Fraction ◽  
Precursor Solution ◽  
Organic Precursor ◽  
Inert Filler ◽  
Organic Precursors ◽  
Prepared Composite ◽  
Scanning Electron

In this paper, we added inert filler SiC and ZrC powders in an organic precursor solution to prepare Cf/SiC-ZrC composites. The experiments of three different contents of slurry in the process of impregnation and pyrolysis for Cf/SiC-ZrC composites were studied. The microstructure and composition of Cf/SiC-ZrC composites were analyzed by scanning electron microscope (SEM) equipped with EDS. This study shows that the addition of inorganic powders in an organic precursor solution can shorten the period of preparation of the composite material and improve its strength. When the mass fraction of the inert filler is 15% in an organic precursor solution, the density of the composite material can be increased to 1.9 g·cm-3 rapidly in 8 periods of preparation. Meanwhile, the internal structure of the prepared composite material becomes more compact, and its mechanical properties are excellent.

scholarly journals Reducing Packaging Waste – Mechanical Characteristics and Network Parameters of the Gelatin-Based Thin Film for Cruciferous Vegetables Packaging

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Nikola Milašinović ◽  
Bojana Balanč ◽  
Nikola Milašinović
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Mechanical Properties ◽  
Smooth Surface ◽  
Mechanical Characteristics ◽  
Cruciferous Vegetables ◽  
Solvent Evaporation Method ◽  
Materials Used ◽  
Negative Factors

The role of the materials used for packaging is to protect innercontent from external, mostly negative, factors. Besides beingsafe, and with good mechanical properties, these materials needto align with other consumers’ needs and demands, being bothattractive and authentic, while at the same time meetingecological requirements. Gelatin-based thin films are goodcandidates for production of semi-soft cup-shaped products thatcould be used for cruciferous vegetables packaging. These filmswere prepared by a simple solvent evaporation method. Preparedfilms were characterized by swelling study and their mechanicalproperties were investigated. The optical characteristics of thefilms were determined by optical microscopy revealing that thesesystems possess attractive clear and transparent gold-yellowishappearance with a smooth surface.

Mechanical properties of PVD Al1−xCrxN thin films

2011 ◽  
Vol 99 (2) ◽  
pp. 239-244 ◽  
Author(s):  
T.T.H. Pham ◽  
E. Le Bourhis ◽  
P. Goudeau ◽  
P. Guérin
Keyword(s):  
Thin Films ◽  
Mechanical Properties

Weldability - Behavior of Welded Reinforcement

2019 ◽  
Vol 70 (10) ◽  
pp. 3469-3472
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Mechanical Characteristics ◽  
Mechanical Performance ◽  
Current Work ◽  
Carbon Equivalent ◽  
Work Process ◽  
Ultimate Limit

Weldability involves two aspects: welding behavior of components and safety in operation. The two aspects will be reduced to the mechanical characteristics of the elements and to the chemical composition. In the case of steel reinforcing rebar’s, it is reduces to the percentage of Cech(carbon equivalent) and to the mechanical characteristics: the yielding limit, the ultimate limit, and the elongations which after that represent the ductility class in which the re-bars is framed. The paper will present some types of steel reinforcing rebar’s with its mechanical characteristics and the welding behavior of those elements. In the current work, process-related behavior of welded reinforcement, joint local and global mechanical properties, and their correlation with behavior of normal reinforcement and also the mechanical performance resulted in this type of joints. Keywords: welding behavior, ultimate limit, reinforcing rebar’s

Residual stress and mechanical properties of polyimide thin films

2009 ◽  
Vol 113 (2) ◽  
pp. 976-983 ◽  
Author(s):  
Wonbong Jang ◽  
Jongchul Seo ◽  
Choonkeun Lee ◽  
Sang-Hyon Paek ◽  
Haksoo Han
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Residual Stress

Nanoconfinement Controls Mechanical Properties of Elastomeric Thin Films

2021 ◽  
pp. 8072-8079
Author(s):  
Pei Bai ◽  
Mingchao Ma ◽  
Li Sui ◽  
Yunlong Guo
Keyword(s):  
Thin Films ◽  
Mechanical Properties
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