Spark Emission Spectroscopy (Quantometer Analysis)
Introduction
Quantometer analysis, or Spark Emission Spectroscopy (SES), is a fast and accurate method for analyzing metal alloys. It is widely used to determine the chemical composition of various alloys, including iron, aluminum, copper, nickel, and titanium alloys. One of the most important applications of quantometric analysis is identifying the type of alloy and assessing the properties of steel and metal samples.
The quantometer method is known for its speed, and the results obtained are generally reliable. It is worth noting that because the process generates a spark on a small surface area, a minor burning effect occurs on the sample. However, if this does not affect the performance of the piece, the method can be considered non-destructive. Quantometric analysis is performed at the Photon Center using the latest standards and references. Additionally, portable and on-site analysis options are available.
Working Principle of the Device
Spark Emission Spectroscopy, also known as quantometer analysis, is an advanced and rapid technique used for accurately analyzing metal alloys. This method is among the most widely used techniques for examining the chemical composition of various alloys, such as iron, aluminum, copper, and nickel alloys.
For precise chemical analysis of metals, the quantometer device requires prior calibration. This is done using a standard sample with a known chemical composition. For example, when testing alloy steels, the device is first calibrated using a standard sample, allowing it to accurately identify alloying elements in the steel.
During analysis, the quantometer generates a small electric arc on the surface of the sample. This arc vaporizes a portion of the metal, causing the elements within it to be released. Due to the high temperature of the electric arc, these elements turn into vapor and then into excited ions. These excited ions emit light.
Each chemical element has specific wavelengths of emitted light. By analyzing this light with a prism, the composition of the emitted wavelengths can be examined. The intensity of light at each wavelength is measured by a detector, where the intensity is directly proportional to the concentration of the specific element in the sample.
By analyzing the wavelengths of the emitted light, the elements present in the sample can be identified. Furthermore, by comparing the light intensity at these wavelengths with a reference sample, the exact quantity of each element can be determined. This allows the quantometer to provide comprehensive information about the chemical composition of the studied sample.
Advantages of Measurement
The quantometer method is a fast and reliable technique for analyzing the chemical composition of metals. Although the spark generation process causes a slight burning effect on the sample’s surface, this effect does not significantly impact the performance of the piece in many cases. Thus, this method can be considered non-destructive in several situations. However, in general, quantometric analysis is classified as a destructive test, as it can have a lasting effect on the sample.
Types of Samples
Quantometer technology is widely used in the metal industries, helping to assess raw material quality, evaluate alloy properties, and ensure compliance with required standards. Due to its accuracy and speed, this technique is essential in industries such as automotive manufacturing, aerospace, and construction, playing a crucial role in ensuring product safety and efficiency.
The following types of samples can be analyzed:
Accurate analysis of all iron alloys with reports on grade and standards (including plain carbon steels, alloy steels, stainless steels, and heat-resistant steels).
Analysis of aluminum alloys.
Analysis of copper alloys.
Analysis of nickel alloys.
Analysis of titanium alloys.
In summary, the quantometer is a modern and essential technique for analyzing metallic materials, offering both speed and accuracy in delivering valuable insights into alloy composition.
Interpretation of Results
1. Identification of Chemical Elements
The results should include a list of elements present in the sample, such as iron, carbon, aluminum, copper, nickel, and others.
The percentage or weight of each element is reported. These values are used to classify and identify the alloy type.
2. Comparison with Standards
The results should be compared with industry standards or approved specifications. For example, if the alloy is stainless steel, the chromium and nickel content should be checked to ensure it meets the required specifications.
Based on this comparison, it can be determined whether the alloy meets the necessary standards. If the values fall outside the acceptable range, this may indicate quality issues.
3. Technical Interpretation of Results
The mechanical and behavioral properties of the alloy can be inferred based on its chemical composition. For example, aluminum alloys with high copper content may be stronger but less corrosion-resistant.
Based on the alloy’s properties, suitable applications can be determined. For instance, titanium alloys used in the aerospace industry must be lightweight and strong.
In conclusion, interpreting the results of alloy analysis requires a comprehensive understanding of industry standards, material properties, and expected performance. This understanding forms the basis for making informed decisions regarding material usage in various industrial applications.