Obtaining of Ceramic Sensor Devices for Soil Humidity Measurements in Different Climatic Conditions

Rodrigo de Matos Oliveira; Maria do Carmo de Andrade Nono; Manoela de Oliveira Couto

doi:10.4028/www.scientific.net/MSF.869.40

Paper Titles

Structural and Microstructural Properties of Si-C and Si-C-B Powders Obtained by High-Energy Ball Milling
p.19

Use of Statistical Techniques in the Optimization of the Process "Starch Consolidation"
p.25

Nondestructive Analysis of Bi2212 Bulk Superconducting Ceramics in the C-Axis Direction
p.29

Synthesis, Characterization and Photoluminescent Properties of ZrO₂ Nanocrystals
p.35

Obtaining of Ceramic Sensor Devices for Soil Humidity Measurements in Different Climatic Conditions
p.40

Comparative Analysis of Fracture Toughness Obtained by Different Techniques in Alumina Matrix - Dispersed TZP Zirconia Composites
p.46

Harder and Denser AlN-TiB₂ Ceramic Composites Processed by Spark Plasma Sintering
p.52

Effect of Boron and Carbon Addition on the Phase Transformations during High-Energy Ball Milling and Subsequent Sintering of Si₃N₄+B and Si₃N₄+C Powder Mixtures
p.58

Fracture Stress Analysis in Ceramic Composites of Alumina Matrix with Zirconia 3Y-TZP Nanograins for Mechanical Shielding of Satellites
p.64

HomeMaterials Science ForumMaterials Science Forum Vol. 869Obtaining of Ceramic Sensor Devices for Soil...

Obtaining of Ceramic Sensor Devices for Soil Humidity Measurements in Different Climatic Conditions

Abstract:

Presently, there is a lack of effectiveness in the manufacturing of sensors and sensing systems, with Brazilian technologies and raw-materials, able to measure soil water content, with efficiency and practicality. On account of this, ceramics is selected as sensing elements for this application, based on relevant results obtained by researchers from the TECAMB Group of INPE, along the last 15 years. In this way, the present work tries to bring together the technologies of manufacturing, characterization and development of porous ceramics and the monitoring of soil water content in typical Brazil soils, for several applications, such as irrigation, drainage, building and environmental monitoring as well. And so, in order to improve the sensing capacity of these ceramic devices, electrical measurements were performed in different climatic conditions of controlled relative humidity and room temperature. The scanning electron microscopy technique was applied for the morphological analysis of the sintered ceramic microstructure. Results evidenced that the ceramic devices presented a very promising response to the water molecules contained in soil samples selected for tests, under established climatic conditions.

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21st Brazilian Conference on Materials Science and Engineering

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Periodical:

Materials Science Forum (Volume 869)

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40-45

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https://doi.org/10.4028/www.scientific.net/MSF.869.40

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Online since:

August 2016

Authors:

Rodrigo de Matos Oliveira*, Maria do Carmo de Andrade Nono, Manoela de Oliveira Couto

Keywords:

Dedicated Sensors, Environmental Monitoring, Porous Ceramics, Soil Water

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