Skip to main content

Ultrahigh Pressure-Sensitive Effect Induced by Field Emission at Sharp Nano-Tips on the Surface of Spiky Spherical Nickel Powders

Buy Article:

$105.00 plus tax (Refund Policy)

The spiky spherical nickel powders with sharp nano-tips on their surface are dispersed into cementmatrix to fabricate composites with an ultrahigh pressure-sensitive response. The pressure-sensitive stress coefficient and the pressure-sensitive strain coefficient (i.e., gauge factor) of these composites can reach 0.19 MPa–1 and 1930 respectively. This ultrahigh pressure-sensitive effect is attributed to the unique spiky surface morphology of nickel powders. Unlike the normal smooth spherical nickel particles, the sharp nano-tips on the surface of spiky spherical nickel particles can induce field emission and tunneling effects. This leads to highly sensitive responses to compressive stress and strain.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: CEMENT-BASED COMPOSITES; FIELD EMISSION EFFECT; NANO-TIP; PRESSURE-SENSITIVITY; SPIKY SPHERICAL NICKEL POWDERS; TUNNELING EFFECT

Document Type: Research Article

Publication date: 2011-10-01

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more