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LGS Piezoelectric muaju

Siv lead ua Langastie (La3Ga5SiO14, LGS), siab tus rau qhov chaw pab P321, taw tes pab 32, tau raug tus mob no yuav tsum pheej tshiab piezoelectric txaus rau fabrication ntawm deg acoustic yoj (kaw)

Xa kev nugTsham tam sim no
Txhawb tshuaj

Siv lead ua Langastie (La3Ga5SiO14, LGS), siab tus rau qhov chaw pab P321, taw tes pab 32, tau raug tus mob no tau muaj pheej tshiab piezoelectric txaus rau fabrication ntawm deg acoustic yoj (kaw), tej acoustic yoj (BAW) pab kiag li lawm thiab sensors (siab sensor, acceleration sensor, QCM, etc.). Nws yuav qhia tias yog ua los ntawm kev siv lead ua langasite li siv tau los ntawm kev kub kub txog 900C vim nws siab thermal stability.

Yooj yim zog
Langasite siv lead ua possesses tej khoom zoo, xws li ntau dua electromechanical coupling tau tshaj quartz, tsis muaj txoj kev hloov theem ntawm sov rau yaj taw tes. Tej khoom uas siv lead ua langasite muaj qhia nyob rau Kem 1 thiab 2 cov lus.
Nrog ceev Ej hauv lub tshuab kev sib txuas lus, lub kaw lus tshiab tiam kev sib txuas lus enables neeg tsis zoo xwb tham, tab sis kuj yuav kis tau cov duab, ntaub ntawv, thiab yees duab. Langasite siv lead ua possesses siab kaw khoom piv nrog quartz, uas ua rau nws ua tus tshaj data khoom nyob hauv daim teb no. POM zog ntawm langasite thiab quartz no muaj nyob rau hauv cov kem 3.

Ntaub ntawv tshuaj

Taub

10 ~ 100 lub hli

Thickness

0.13 ~ 0.5 hli

Ua ntej siv pav ca

hli 15.0

Ntxiv mus siv pav ca

hli 8.0

Roughness deg
(Polished)

Ra≤1 nm

Orientation

nram qab no neeg specifications

Qhov ntau thiab tsawg lwm rau neeg specifications reflected

1 kem nruj Dielectric, piezoelectric, elastic constants thiab ua ntej lawv txiav txim kom kub coefficients uas siv lead ua langasite

Qhov

Tus kwv tij
Dielectric tsis tu ncua

Piezoelectric tsis tu ncua
(pC/N)

Elastic Stiffness(1011 Pa)

ε11

ε33

d11

d14

c11

c12

c13

c14

C33

C44

Tus nqi

18.96

50.19

5.66

-5.48

1.898

1.058

1.022

0.144

2.626

0.535

Thawj txiav txim Temp. Coef. (10-6· K-1)

150

-760

329

-342

-66

204

-75

-335

-94

-63

2 cov lus Comparative zog ntawm piezoelectric muaju

Zog yog muaj siv lead ua

Quartz SiO2

Langasite
La3Ga5SiO14

Lithium tetraborate Li2B4O7

Lithium tantalate LiTaO3

Qhov zoo tshaj yuav electromechanical CouplingK, %(BAW)

7.0

15.8

24.0

47.0

Zaus yov Δf %

0.25

0.90

4.00

7.00

Q-muab Q, × 103

100

50

10

2

Kub zaus Coefficient
TFC, × 10-6/℃

0.5

1.6

6.0

4.0

3 cov lus kaw zog ntawm langasite thiab Quartz

Zog yog muaj siv lead ua

Quartz (SiO2)

Langasite (La3Ga5SiO14)

Ceev, j/cm³

2.65

5.746

POM muaj tshaj tawm Vef, m/s

(0°, 132.75°, 0°)
3157

(0°, 140°, 25°)
2756

Electromechanical coupling muab K2emc, %(SAW)

0.14

0.36

Thib ob hais temp. coef.
Α2, × 10-8/℃2

-3.2

-6.8

Temp. Coef. TTO, ℃

25

23

E Dielectric tsis tu ncua

4.92

27

Lub hwj huam yuav txausF, °

0

0.5

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