XRF analysis of chamotte, fire clay

Key data on chamotte, fire clays

Composition: A range of refractory clays with Al2O3 and SiO2 as main components.
Raw materials: Clay, kaolin or their sintered products, alumosilicates like andalusite, sillimanite, mullite as well as sintered bauxite and corundum
Fields of application: Fireclay bricks are used in furnace construction, blast furnaces, foundries in steel mills, coke ovens and gas furnaces, glass and cement industry.

Analytical techniques for the analysis of chamotte, fire clay by XRF

Wide range of measurement programmes for the XRF-analysis of chamotte, fireclays from fused beads or pressed powders
Screening analysis for up to 71 elements
Additional tests
Determination of bulk density and porosity
Carbon analysis of different modifications like TOC, TIC, TC
X-ray microanalysis, EDX to identify inclusions and impurities

Quantitative XRF analysis from a fused bead

Quantitative analysis of a fused bead for 12, 16, 20 or 40 elements according to DIN ISO 12677:2012, DIN EN 15309:2007

For the analysis of oxide and oxidizable samples composed of a wide range of different materials such as, for instance, glass and glass fibres, soils, rock, mineral raw materials, ceramic or mineral-bonded construction materials etc.

This process involves adding a flux, lithium tetra borate, to the sample material, followed by fusing in an oxidizing atmosphere after which the sample is rapidly cooled down to form a homogenous fused bead, which is then analysed with utmost precision.

! Please note !

In order to guarantee standard conformity of analysis the sample material must be ground to a grainsize < 63 µm, dried at 105°C and we need the value for the loss on ignition, LOI, as a kind of pre-preparation of the sample..

Consequently and if obligatory we carry out the sample preparation as mentioned obove - grinding, drying, determination of LOI - even though you have not explicitely ordered it.

Screening analysis for 71 oxides/elements

The fundamental parameter programme Omnian provides a matrix-independent, quantitative, semi-quantitative or qualitative XRF analysis of unknown samples with a variety of material properties and different organic and inorganic compositions.

Samples can be analyzed either after preparation or without preparation and non-destructively in case of a suitable composition, i.e. X-ray and vacuum stable and depending on their surface condition.This enables us to determine element concentrations between the minimum detection limit, usually 250 µg/g and 100%.