MicroCT Sample Results

The following images give an idea of the types of analyses that can be performed using our MicroCT instrument. Click on any of the images for a larger view.

Biological

Biological Scaffolds

Biological Scaffolds

The structure of biological scaffolds can be imaged in three dimensions. Properties such as volume and porosity can also be calculated. (Prof. W. Sun)

Bone Growth

Bone Growth

MicroCT has many applications in the biomedical field one of which is the characterization of bone growth. The figure shows the use of microCT to quantify the orientation of vascular spacing in the bone cortex. The radially oriented vessels grow beneath endosteal (blue arrow) and periosteal (yellow arrow) surfaces.(Prof. H. Goldman)

Mouse Skeleton

Mouse Skeleton

Imaging the skeletal structure of small animals is possible with microCT.

Environmental

Soil Mechanics

Soil Mechanics

Agglomerated soil. Three phases are visible, air, water, and grains. (Prof. D. Gimenez, Rutgers University)

Glass Beads

Glass Beads

The effects of degrading bacteria on pure phase trichloroethylene from cleaning solvents will show whether bioremediation is plausible for treating contaminated soil. As seen in the figure, microCT is a suitable technique for determining a mass transfer rate coefficient for the dissolution of TCE in the presence of a ganglion from 0 (a) to 17 (b) hours. (Prof. M. Olson)

Failure Anaylsis

Corkscrew

Corkscrew

A void within a structure can be highlighted such as the open space left behind when a corkscrew is removed from a piece of cork. Three dimensional fracture analysis can be done with no sample preparation.

Fragmentation

Fragmentation

The cross section of sugar beads before (Left) and after (Right) being compressed can be used to understand the fragmentation mechanisms in similar systems.

Integrated Circuits

Integrated Circuits

Fabricators of micro-integrated circuits can use tomography to characterize internal defects.

Fracture

Fracture

Visualization of an internal fracture is imaged with no sample preparation. The cross section is a cracked plastic button from a washing machine.

Material Processing

Briquette

Briquette

Fractured briquette after exiting from rolls.

Coatings

Coatings

MicroCT can be used to determine the quality of thin coatings. The Figure shows a nano-particulate calcium carbonate coating on the right side of the .5 mm thick paper samples. The CaCO3 has a high X-radiation absorption level which creates a halo effect as seen in the zoomed in image.

Spray Coatings

Spray Coatings

The X-radiation absorption levels of two different components of a composite system can be binarized, colored, and 3-D modeled to define structure. The dispersion of silica in a Nylon matrix for thermal plasma coating of metal substrates is seen in the figure. Comparing this to the porosity shows that the silica concentrates at splat boundaries. (Prof. R. Knight)

Pharmaceuticals

Compositional Analysis

Compositional Analysis

Identification of the active ingredient in pharmaceutical tablets can be done without sample destruction or preparation. High atomic number active ingredient can be readily identified within a tablet.

Phase Distributions

Phase Distributions

Through the reconstruction of pharmaceutical tablet cross sections, internal phase distribution can be viewed without any sample destruction or preparation. This is important for the processing and performance of the tablet because each component has different chemical and mechanical properties.

Diametrical Compression

Diametrical Compression

With the aid of a mechanical testing stage, diametrical compression tests can be interrupted at any load and the specimen can be scanned to obtain full three dimensional analysis of failure.

Dissolution

Dissolution

Interrupted dissolution study of a control release tablet.