Sentences with word «microcracks»

The artwork appeared on the front cover of Applied Surface Science summarizes the benefits of a new bioceramic coating versus the commercially available Calcium Phosphate which develops microcracks during processing and may later cause osteolysis in load - bearing orthopedic implants.

A six - year study of seismic activity along the San Andreas Fault found that the 2004 Parkfield earthquake caused breakage and microcracking in shallow rock layers that changed the speed at which seismic waves moved through the area, making it more vulnerable to tremors for more than three years afterward.

Through observing the mineralogical changes that took place in the curing of the mortar over a period of 180 days and comparing the results to 1,900 year old samples of the original, the team discovered that a crystalline binding hydrate prevents microcracks from propagating.

But a computer simulation after the accident showed that a concentrated load on the edge of the 52 - centimeter - diameter tubes might create microcracks on the neck that could give way when the tank was filled.

In the first study appearing on the front cover of the July issue of Applied Surface Science, researchers demonstrated a mechanically superior bioactive coating based on magnesium silicates rather than the commercially available calcium phosphate which develops microcracks during preparation and delaminates under pressure.

But it is also vulnerable to scratching, which can lead to the development of microcracks that spread over time until the material fails.

Backscatter X-ray pigs, which assemble images of the inside of a pipe based on reflected radiation, can detect tiny microcracks before they develop into bigger lesions.

Similar microcracks within Europa's ice, especially if nourished by brine upwelling from the liquid seas below, may also hold living organisms.»

«The mortar resists microcracking through in situ crystallization of platy strätlingite, a durable calcium - alumino - silicate mineral that reinforces interfacial zones and the cementitious matrix,» says Marie Jackson, a faculty scientist with the University of California (UC) Berkeley's Department of Civil and Environmental Engineering who led this study.

In elderly people with osteoporosis, microcracks accumulate because repair is compromised and lead to fragility fractures, most commonly in the hip, wrist and spine.

He continued: «By using our new nanoagent to label microcracks and detecting them with magnetic resonance imaging (MRI), we hope to measure both bone quantity and quality and identify those at greatest risk of fracture and institute appropriate therapy.

«We have demonstrated that we can achieve a three - dimensional map of bone damage, showing the so - called microcracks, using non-invasive luminescence imaging.

These are normally repaired by a remodelling process, but, when microcracks develop faster, they can exceed the repair rate and so accumulate and weaken our bones.

At 200 °C, 300 °C, 400 — 500 °C, 600 — 700 °C and 800 °C bones progressively exhibit pale yellow, bright brown, black, dark - brownish grey and light grey - white colour [10](Figure 6), respectively, and structural microcracks increase from a linear to a polygonal pattern (Figure 7).

The bones of the Pompeii victims show colour variations ranging from natural bone colour to pale yellow as well as evidence of linear microcracking at the interosteonic level (Figure 4a1).

Largely eliminates issues of damage from microcracks as a result of foot traffic or vibration, earthquake and hailstone resistant

Your engineering resume must prove your worth without a single microcrack.

Professor Lee said: «Everyday activity loads our bones and causes microcracks to develop.

When these particles settled on the glass fibers they created microcracks, which widened over days and weeks until the fibers failed.

Greeley says, «In the Antarctic, microcracks in the ice often serve as reservoirs for liquid water and cold - tolerant microorganisms to grow and flourish.

It gives a very strong improvement for detecting very tiny pinhole leak (possibly in imperfect welds), crack or microcrack caused by inadequate sealing process.