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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle01:19

Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle

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Inductively coupled plasma (ICP) is the most widely used plasma source in atomic emission spectroscopy (AES), also known as Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The ICP source, or torch, consists of three concentric quartz tubes with argon gas flowing through them. A spark from a Tesla coil initiates the ionization of argon, generating a high-temperature plasma.
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Atomic Emission Spectroscopy: Overview01:20

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Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
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Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

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Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
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Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview01:19

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

2.1K
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
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Related Experiment Video

Updated: Feb 19, 2026

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals
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All-Materials-Inclusive Flash Spark Plasma Sintering.

Charles Manière1, Geuntak Lee1, Eugene A Olevsky2

  • 1Powder Technology Laboratory, San Diego State University, San Diego, USA.

Scientific Reports
|November 10, 2017
PubMed
Summary

A novel flash spark plasma sintering technique enables rapid densification of diverse materials, from metals to ceramics. This ultra-rapid method achieves homogeneous microstructures in seconds, broadening flash sintering applications.

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Area of Science:

  • Materials Science
  • Powder Metallurgy
  • Advanced Manufacturing

Background:

  • Spark plasma sintering (SPS) is a widely used technique for consolidating materials.
  • Conventional SPS methods can be time-consuming and energy-intensive.
  • Limitations exist in applying SPS to materials with high electrical resistivity.

Purpose of the Study:

  • To develop a new ultra-rapid flash spark plasma sintering (SPS) method.
  • To demonstrate the applicability of this method across a wide range of material types.
  • To investigate the underlying mechanisms enabling rapid and homogeneous heating.

Main Methods:

  • Development of a novel flash SPS technique utilizing electric current concentration and thermal contact resistance.
  • Application of the method to various powder materials, including metals and electrically insulative ceramics.
  • Finite element simulation to analyze heating patterns and confirm applicability.

Main Results:

  • Successful densification of diverse materials (metals, ceramics) with homogeneous microstructures.
  • Achieved ultra-rapid sintering times ranging from 8 to 35 seconds.
  • Demonstrated uniform and rapid heating concentrated within the sample and punches.

Conclusions:

  • The developed flash SPS method is applicable to nearly all materials, irrespective of electrical resistivity.
  • The technique allows for control over sample shape using a graphite die.
  • This approach offers energy-efficient mass production of small to intermediate-sized objects and opens avenues for complex shape sintering.