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Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...

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Updated: Jun 21, 2025

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

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Published on: May 1, 2018

Reactive Infiltration: Effects of Different Parameters.

M Karla López-González¹, Leidy Figueroa-Quintero¹, David Villalgordo-Hernández¹

¹Laboratory of Advanced Materials, Inorganic Chemistry Department, University Materials Institute of Alicante, University of Alicante, 03080 Alicante, Spain.

Materials (Basel, Switzerland)

|July 13, 2024

Summary

Reactive infiltration, a key method for producing silicon carbide (SiC) parts, is primarily driven by chemical reactions, not fluid dynamics. This finding clarifies the fundamental mechanisms governing this versatile and cost-effective manufacturing process.

Keywords:

SiC model reactive infiltration

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Area of Science:

Materials Science
Chemical Engineering
Ceramics Processing

Background:

Reactive infiltration is a widely adopted, cost-effective method for producing complex silicon carbide (SiC) and SiC/SiC components.
Compared to technologies like Hot Isostatic Pressing (HIP), reactive infiltration offers significant advantages in versatility and economics.
Debate persists regarding the underlying mechanisms controlling the infiltration process.

Purpose of the Study:

To investigate and provide definitive evidence on whether reactive infiltration is governed by physical flow dynamics or chemical reactions.
To resolve the ongoing scientific debate concerning the primary driving forces in reactive infiltration.

Main Methods:

Analysis of the reactive infiltration process for complex SiC and SiC/SiC parts.
Experimental investigation focusing on the role of reactions at the triple line (contact line between solid, liquid, and gas phases).

Main Results:

Consistent and strong evidence indicates that chemical reactions are the dominant factor controlling reactive infiltration.
The study refutes the hypothesis that fluid dynamics alone dictate the infiltration behavior.

Conclusions:

Reactive infiltration is primarily a chemically controlled process.
Understanding the chemical reaction mechanisms is crucial for optimizing SiC and SiC/SiC part production.
This research clarifies fundamental aspects of reactive infiltration, impacting future manufacturing strategies.