| Share | Phrase |
|---|
| 22.84% | ptcr ceramic |
| 9.13% | porous [structure] ceramic |
| 8.41% | mullite-type ceramic |
| 7.56% | make of ceramic |
| 6.46% | heat-resistant [physical/chemical] ceramic |
| 6.28% | coating [is] ceramic |
| 4.75% | conductive [physical/chemical] ceramic |
| 4.36% | form of ceramic |
| 4.11% | zirconia ceramic |
| 4.02% | make from ceramic |
| 3.91% | ceramic material |
| 3.07% | resistant [physical/chemical] ceramic |
| 2.71% | ceramic [does] have |
| 2.66% | ceramic mixture |
| 2.05% | use ceramic [perform operation] |
| 1.75% | include ceramic [perform operation] |
| 1.69% | different [similarity] ceramic |
| 1.52% | type ceramic |
| 1.32% | comprise ceramic [perform operation] |
| 1.30% | high [size] ceramic |